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href="/hass.tibber_prices/developer/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">📐 Advanced Topics</span></li><li class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Performance Optimization</span></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Next 🚧</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Performance Optimization</h1></header>
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<p>Guidelines for maintaining and improving integration performance.</p>
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<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="performance-goals">Performance Goals<a href="#performance-goals" class="hash-link" aria-label="Direct link to Performance Goals" title="Direct link to Performance Goals" translate="no"></a></h2>
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<p>Target metrics:</p>
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<ul>
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<li class=""><strong>Coordinator update</strong>: <500ms (typical: 200-300ms)</li>
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<li class=""><strong>Sensor update</strong>: <10ms per sensor</li>
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<li class=""><strong>Period calculation</strong>: <100ms (typical: 20-50ms)</li>
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<li class=""><strong>Memory footprint</strong>: <10MB per home</li>
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<li class=""><strong>API calls</strong>: <100 per day per home</li>
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</ul>
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<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="profiling">Profiling<a href="#profiling" class="hash-link" aria-label="Direct link to Profiling" title="Direct link to Profiling" translate="no"></a></h2>
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<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="timing-decorator">Timing Decorator<a href="#timing-decorator" class="hash-link" aria-label="Direct link to Timing Decorator" title="Direct link to Timing Decorator" translate="no"></a></h3>
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<p>Use for performance-critical functions:</p>
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<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> time</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> functools</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">timing</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">func</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token decorator annotation punctuation" style="color:#393A34">@functools</span><span class="token decorator annotation punctuation" style="color:#393A34">.</span><span class="token decorator annotation punctuation" style="color:#393A34">wraps</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">func</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">wrapper</span><span class="token punctuation" style="color:#393A34">(</span><span class="token operator" style="color:#393A34">*</span><span class="token plain">args</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">**</span><span class="token plain">kwargs</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> start </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> time</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">perf_counter</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> func</span><span class="token punctuation" style="color:#393A34">(</span><span class="token operator" style="color:#393A34">*</span><span class="token plain">args</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">**</span><span class="token plain">kwargs</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> duration </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> time</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">perf_counter</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token plain"> start</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> _LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">debug</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"%s took %.3fms"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> func</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">__name__</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> duration </span><span class="token operator" style="color:#393A34">*</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">1000</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> result</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> wrapper</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token decorator annotation punctuation" style="color:#393A34">@timing</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">expensive_calculation</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Your code here</span><br></span></code></pre></div></div>
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<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="memory-profiling">Memory Profiling<a href="#memory-profiling" class="hash-link" aria-label="Direct link to Memory Profiling" title="Direct link to Memory Profiling" translate="no"></a></h3>
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<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> tracemalloc</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">tracemalloc</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">start</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># Run your code</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">current</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> peak </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tracemalloc</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">get_traced_memory</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">_LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"Memory: current=%.2fMB peak=%.2fMB"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> current </span><span class="token operator" style="color:#393A34">/</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">1024</span><span class="token operator" style="color:#393A34">**</span><span class="token number" style="color:#36acaa">2</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> peak </span><span class="token operator" style="color:#393A34">/</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">1024</span><span class="token operator" style="color:#393A34">**</span><span class="token number" style="color:#36acaa">2</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">tracemalloc</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">stop</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
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<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="async-profiling">Async Profiling<a href="#async-profiling" class="hash-link" aria-label="Direct link to Async Profiling" title="Direct link to Async Profiling" translate="no"></a></h3>
|
||
<div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># Install aioprof</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">uv pip </span><span class="token function" style="color:#d73a49">install</span><span class="token plain"> aioprof</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># Run with profiling</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">python </span><span class="token parameter variable" style="color:#36acaa">-m</span><span class="token plain"> aioprof homeassistant </span><span class="token parameter variable" style="color:#36acaa">-c</span><span class="token plain"> config</span><br></span></code></pre></div></div>
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<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="optimization-patterns">Optimization Patterns<a href="#optimization-patterns" class="hash-link" aria-label="Direct link to Optimization Patterns" title="Direct link to Optimization Patterns" translate="no"></a></h2>
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<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="caching">Caching<a href="#caching" class="hash-link" aria-label="Direct link to Caching" title="Direct link to Caching" translate="no"></a></h3>
|
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<p><strong>1. Persistent Cache</strong> (API data):</p>
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<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># Already implemented in coordinator/cache.py</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">store </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> Store</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">hass</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> STORAGE_VERSION</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> STORAGE_KEY</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">data </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> store</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">async_load</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
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<p><strong>2. Translation Cache</strong> (in-memory):</p>
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<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># Already implemented in const.py</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">_TRANSLATION_CACHE</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">[</span><span class="token builtin">str</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">get_translation</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">path</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token builtin">str</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> language</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token builtin">str</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> cache_key </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token string-interpolation string" style="color:#e3116c">f"</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">{</span><span class="token string-interpolation interpolation">path</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">}</span><span class="token string-interpolation string" style="color:#e3116c">_</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">{</span><span class="token string-interpolation interpolation">language</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">}</span><span class="token string-interpolation string" style="color:#e3116c">"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> cache_key </span><span class="token keyword" style="color:#00009f">not</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> _TRANSLATION_CACHE</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> _TRANSLATION_CACHE</span><span class="token punctuation" style="color:#393A34">[</span><span class="token plain">cache_key</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> load_translation</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">path</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> language</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> _TRANSLATION_CACHE</span><span class="token punctuation" style="color:#393A34">[</span><span class="token plain">cache_key</span><span class="token punctuation" style="color:#393A34">]</span><br></span></code></pre></div></div>
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<p><strong>3. Config Cache</strong> (invalidated on options change):</p>
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||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">DataTransformer</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">__init__</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_config_cache</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">|</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">get_config</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_config_cache </span><span class="token keyword" style="color:#00009f">is</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_config_cache </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_build_config</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_config_cache</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">invalidate_config_cache</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_config_cache </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><br></span></code></pre></div></div>
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||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="lazy-loading">Lazy Loading<a href="#lazy-loading" class="hash-link" aria-label="Direct link to Lazy Loading" title="Direct link to Lazy Loading" translate="no"></a></h3>
|
||
<p><strong>Load data only when needed:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token decorator annotation punctuation" style="color:#393A34">@property</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">extra_state_attributes</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">|</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Return attributes."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Calculate only when accessed</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">entity_description</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">key </span><span class="token operator" style="color:#393A34">==</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"complex_sensor"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_calculate_complex_attributes</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><br></span></code></pre></div></div>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="bulk-operations">Bulk Operations<a href="#bulk-operations" class="hash-link" aria-label="Direct link to Bulk Operations" title="Direct link to Bulk Operations" translate="no"></a></h3>
|
||
<p><strong>Process multiple items at once:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ Slow - loop with individual operations</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">for</span><span class="token plain"> interval </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> intervals</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> enriched </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> enrich_single_interval</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">interval</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> results</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">append</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">enriched</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Fast - bulk processing</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">results </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> enrich_intervals_bulk</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">intervals</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="async-best-practices">Async Best Practices<a href="#async-best-practices" class="hash-link" aria-label="Direct link to Async Best Practices" title="Direct link to Async Best Practices" translate="no"></a></h3>
|
||
<p><strong>1. Concurrent API calls:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ Sequential (slow)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">user_data </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> fetch_user_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">price_data </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> fetch_price_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Concurrent (fast)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">user_data</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> price_data </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> asyncio</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">gather</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> fetch_user_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> fetch_price_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<p><strong>2. Don't block event loop:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ Blocking</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> heavy_computation</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Blocks for seconds</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Non-blocking</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> hass</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">async_add_executor_job</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">heavy_computation</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="memory-management">Memory Management<a href="#memory-management" class="hash-link" aria-label="Direct link to Memory Management" title="Direct link to Memory Management" translate="no"></a></h2>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="avoid-memory-leaks">Avoid Memory Leaks<a href="#avoid-memory-leaks" class="hash-link" aria-label="Direct link to Avoid Memory Leaks" title="Direct link to Avoid Memory Leaks" translate="no"></a></h3>
|
||
<p><strong>1. Clear references:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">Coordinator</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">async</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">async_shutdown</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Clean up resources."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_listeners</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">clear</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_data </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_cache </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">None</span><br></span></code></pre></div></div>
|
||
<p><strong>2. Use weak references for callbacks:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> weakref</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">Manager</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">__init__</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_callbacks</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token builtin">list</span><span class="token punctuation" style="color:#393A34">[</span><span class="token plain">weakref</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">ref</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">register</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> callback</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_callbacks</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">append</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">weakref</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">ref</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">callback</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="efficient-data-structures">Efficient Data Structures<a href="#efficient-data-structures" class="hash-link" aria-label="Direct link to Efficient Data Structures" title="Direct link to Efficient Data Structures" translate="no"></a></h3>
|
||
<p><strong>Use appropriate types:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ List for lookups (O(n))</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> timestamp </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> timestamp_list</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Set for lookups (O(1))</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> timestamp </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> timestamp_set</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ❌ List comprehension with filter</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">results </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token plain">x </span><span class="token keyword" style="color:#00009f">for</span><span class="token plain"> x </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> items </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> condition</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">x</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Generator for large datasets</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">results </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">x </span><span class="token keyword" style="color:#00009f">for</span><span class="token plain"> x </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> items </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> condition</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">x</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="coordinator-optimization">Coordinator Optimization<a href="#coordinator-optimization" class="hash-link" aria-label="Direct link to Coordinator Optimization" title="Direct link to Coordinator Optimization" translate="no"></a></h2>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="minimize-api-calls">Minimize API Calls<a href="#minimize-api-calls" class="hash-link" aria-label="Direct link to Minimize API Calls" title="Direct link to Minimize API Calls" translate="no"></a></h3>
|
||
<p><strong>Already implemented:</strong></p>
|
||
<ul>
|
||
<li class="">Cache valid until midnight</li>
|
||
<li class="">User data cached for 24h</li>
|
||
<li class="">Only poll when tomorrow data expected</li>
|
||
</ul>
|
||
<p><strong>Monitor API usage:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">_LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">debug</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"API call: %s (cache_age=%s)"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> endpoint</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> cache_age</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="smart-updates">Smart Updates<a href="#smart-updates" class="hash-link" aria-label="Direct link to Smart Updates" title="Direct link to Smart Updates" translate="no"></a></h3>
|
||
<p><strong>Only update when needed:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">async</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">_async_update_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Fetch data from API."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_is_cache_valid</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> _LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">debug</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"Using cached data"</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">data</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Fetch new data</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_fetch_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
|
||
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="database-impact">Database Impact<a href="#database-impact" class="hash-link" aria-label="Direct link to Database Impact" title="Direct link to Database Impact" translate="no"></a></h2>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="state-class-selection">State Class Selection<a href="#state-class-selection" class="hash-link" aria-label="Direct link to State Class Selection" title="Direct link to State Class Selection" translate="no"></a></h3>
|
||
<p><strong>Affects long-term statistics storage:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ MEASUREMENT for prices (stores every change)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">state_class</span><span class="token operator" style="color:#393A34">=</span><span class="token plain">SensorStateClass</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">MEASUREMENT </span><span class="token comment" style="color:#999988;font-style:italic"># ~35K records/year</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ None for prices (no long-term stats)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">state_class</span><span class="token operator" style="color:#393A34">=</span><span class="token boolean" style="color:#36acaa">None</span><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Only current state</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ TOTAL for counters only</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">state_class</span><span class="token operator" style="color:#393A34">=</span><span class="token plain">SensorStateClass</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">TOTAL </span><span class="token comment" style="color:#999988;font-style:italic"># For cumulative values</span><br></span></code></pre></div></div>
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||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="attribute-size">Attribute Size<a href="#attribute-size" class="hash-link" aria-label="Direct link to Attribute Size" title="Direct link to Attribute Size" translate="no"></a></h3>
|
||
<p><strong>Keep attributes minimal:</strong></p>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"># ❌ Large nested structures (KB per update)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">attributes </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"all_intervals"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># 384 intervals</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"full_history"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">.</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Days of data</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># ✅ Essential data only (bytes per update)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">attributes </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"timestamp"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"..."</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"rating_level"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"..."</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"next_interval"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"..."</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><br></span></code></pre></div></div>
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||
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="testing-performance">Testing Performance<a href="#testing-performance" class="hash-link" aria-label="Direct link to Testing Performance" title="Direct link to Testing Performance" translate="no"></a></h2>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="benchmark-tests">Benchmark Tests<a href="#benchmark-tests" class="hash-link" aria-label="Direct link to Benchmark Tests" title="Direct link to Benchmark Tests" translate="no"></a></h3>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> pytest</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> time</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token decorator annotation punctuation" style="color:#393A34">@pytest</span><span class="token decorator annotation punctuation" style="color:#393A34">.</span><span class="token decorator annotation punctuation" style="color:#393A34">mark</span><span class="token decorator annotation punctuation" style="color:#393A34">.</span><span class="token decorator annotation punctuation" style="color:#393A34">benchmark</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">test_period_calculation_performance</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">coordinator</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Period calculation should complete in &lt;100ms."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> start </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> time</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">perf_counter</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> periods </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> calculate_periods</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">coordinator</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">data</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> duration </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> time</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">perf_counter</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token plain"> start</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">assert</span><span class="token plain"> duration </span><span class="token operator" style="color:#393A34"><</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">0.1</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token string-interpolation string" style="color:#e3116c">f"Too slow: </span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">{</span><span class="token string-interpolation interpolation">duration</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">:</span><span class="token string-interpolation interpolation format-spec">.3f</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">}</span><span class="token string-interpolation string" style="color:#e3116c">s"</span><br></span></code></pre></div></div>
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||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="load-testing">Load Testing<a href="#load-testing" class="hash-link" aria-label="Direct link to Load Testing" title="Direct link to Load Testing" translate="no"></a></h3>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token decorator annotation punctuation" style="color:#393A34">@pytest</span><span class="token decorator annotation punctuation" style="color:#393A34">.</span><span class="token decorator annotation punctuation" style="color:#393A34">mark</span><span class="token decorator annotation punctuation" style="color:#393A34">.</span><span class="token decorator annotation punctuation" style="color:#393A34">integration</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">async</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">test_multiple_homes_performance</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">hass</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Test with 10 homes."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> coordinators </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token punctuation" style="color:#393A34">]</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">for</span><span class="token plain"> i </span><span class="token keyword" style="color:#00009f">in</span><span class="token plain"> </span><span class="token builtin">range</span><span class="token punctuation" style="color:#393A34">(</span><span class="token number" style="color:#36acaa">10</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> coordinator </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> create_coordinator</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">hass</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> home_id</span><span class="token operator" style="color:#393A34">=</span><span class="token string-interpolation string" style="color:#e3116c">f"home_</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">{</span><span class="token string-interpolation interpolation">i</span><span class="token string-interpolation interpolation punctuation" style="color:#393A34">}</span><span class="token string-interpolation string" style="color:#e3116c">"</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> coordinator</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">async_refresh</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> coordinators</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">append</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">coordinator</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Verify memory usage</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic"># Verify update times</span><br></span></code></pre></div></div>
|
||
<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="monitoring-in-production">Monitoring in Production<a href="#monitoring-in-production" class="hash-link" aria-label="Direct link to Monitoring in Production" title="Direct link to Monitoring in Production" translate="no"></a></h2>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="log-performance-metrics">Log Performance Metrics<a href="#log-performance-metrics" class="hash-link" aria-label="Direct link to Log Performance Metrics" title="Direct link to Log Performance Metrics" translate="no"></a></h3>
|
||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token decorator annotation punctuation" style="color:#393A34">@timing</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">async</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">def</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">_async_update_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">self</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">-</span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token builtin">dict</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token triple-quoted-string string" style="color:#e3116c">"""Fetch data with timing."""</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> self</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">_fetch_data</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> _LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"Update completed in %.2fs"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> timing_duration</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> result</span><br></span></code></pre></div></div>
|
||
<h3 class="anchor anchorTargetStickyNavbar_Vzrq" id="memory-tracking">Memory Tracking<a href="#memory-tracking" class="hash-link" aria-label="Direct link to Memory Tracking" title="Direct link to Memory Tracking" translate="no"></a></h3>
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||
<div class="language-python codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_QJqH"><pre tabindex="0" class="prism-code language-python codeBlock_bY9V thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> psutil</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> os</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">process </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> psutil</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">Process</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">os</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">getpid</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">memory_mb </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> process</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">memory_info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">rss </span><span class="token operator" style="color:#393A34">/</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">1024</span><span class="token operator" style="color:#393A34">**</span><span class="token number" style="color:#36acaa">2</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">_LOGGER</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">debug</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"Current memory usage: %.2f MB"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> memory_mb</span><span class="token punctuation" style="color:#393A34">)</span><br></span></code></pre></div></div>
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<hr>
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<p>💡 <strong>Related:</strong></p>
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<ul>
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<li class=""><a class="" href="/hass.tibber_prices/developer/caching-strategy">Caching Strategy</a> - Cache layers</li>
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<li class=""><a class="" href="/hass.tibber_prices/developer/architecture">Architecture</a> - System design</li>
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<li class=""><a class="" href="/hass.tibber_prices/developer/debugging">Debugging</a> - Profiling tools</li>
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</ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col noPrint_WFHX"><a href="https://github.com/jpawlowski/hass.tibber_prices/tree/main/docs/developer/docs/performance.md" target="_blank" rel="noopener noreferrer" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_JAkA"><span class="theme-last-updated">Last updated<!-- --> on <b><time datetime="2025-12-06T01:37:06.000Z" itemprop="dateModified">Dec 6, 2025</time></b></span></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" 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class="table-of-contents__link toc-highlight">Coordinator Optimization</a><ul><li><a href="#minimize-api-calls" class="table-of-contents__link toc-highlight">Minimize API Calls</a></li><li><a href="#smart-updates" class="table-of-contents__link toc-highlight">Smart Updates</a></li></ul></li><li><a href="#database-impact" class="table-of-contents__link toc-highlight">Database Impact</a><ul><li><a href="#state-class-selection" class="table-of-contents__link toc-highlight">State Class Selection</a></li><li><a href="#attribute-size" class="table-of-contents__link toc-highlight">Attribute Size</a></li></ul></li><li><a href="#testing-performance" class="table-of-contents__link toc-highlight">Testing Performance</a><ul><li><a href="#benchmark-tests" class="table-of-contents__link toc-highlight">Benchmark Tests</a></li><li><a href="#load-testing" class="table-of-contents__link toc-highlight">Load Testing</a></li></ul></li><li><a href="#monitoring-in-production" class="table-of-contents__link 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