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frameworks_base/docs/html/tools/performance/index.jd
Adarsh Fernando 37cc54ebf1 Docs: Added Instant Run feature overview section
- Added notes in other docs related to IR compatibility
- Changed 65K Dex Limit -> 64K Dex Limit

Bug:24709303
Bug:27571202
Bug:27794423
Bug:26230674
Change-Id: I16f530df6169602261c6b0a049de9c53e8819c9b
2016-04-05 13:43:06 -07:00

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page.title=Performance Profiling Tools
meta.tags="android, develop, performance, profiling, tools, gather"
page.tags="android", "develop", "performance", "profiling", "tools" "gather"
page.metaDescription=Android Studio profiling tools for evaluating your app's performance.
page.article=true
@jd:body
<p>Putting pixels on the screen involves four primary pieces of hardware.
To greatly simplify, the CPU computes display lists, the GPU renders images to
the display, the memory stores images and data, and the battery provides
electrical power. Each of these pieces of hardware has constraints; pushing
or exceeding those constraints causes your app to be slow, have
bad display performance, or exhaust the battery.
<p>To discover what causes your specific performance problems, you need to
take a look under the hood, use tools to collect data about your app's
execution behavior, surface that data as lists and
graphics, understand and analyze what you see, and improve your code.</p>
<p>Android Studio and your device provide profiling tools to record and
visualize the rendering, compute, memory, and battery performance of your
app.</p>
<p class="note">
<strong>Note:</strong> While profiling an app, you should <a href=
"{@docRoot}tools/building/building-studio.html#disable-ir">disable Instant
Run</a>. There is a small performance impact when <a href=
"{@docRoot}tools/building/building-studio.html#instant-run">using Instant
Run</a> and a slightly larger impact when updating methods. This
performance impact could interfere with information provided by performance
profiling tools. Additionally, the stub methods generated while using the
feature can complicate stack traces.
</p>
<h2 id="rendering-tools">Rendering Analysis Tools</h2>
<p>Visualize the rendering behavior and performance of your app.</p>
<div class="dynamic-grid">
<div class="resource-widget resource-flow-layout landing col-12"
data-query="collection:tools/performance/rendering"
data-cardSizes="9x3"
data-maxResults="6">
</div>
</div>
<h2 id="memory-tools">Memory Analysis Tools</h2>
<p>Visualize the memory behavior and performance of your app.</p>
<div class="dynamic-grid">
<div class="resource-widget resource-flow-layout landing col-12"
data-query="collection:tools/performance/memory"
data-cardSizes="9x3"
data-maxResults="6">
</div>
</div>
<h2 id="cpu-tools">Compute Analysis Tools</h2>
<p>Visualize the CPU behavior and performance of your app.</p>
<div class="dynamic-grid">
<div class="resource-widget resource-flow-layout landing col-12"
data-query="collection:tools/performance/cpu"
data-cardSizes="9x3"
data-maxResults="4">
</div>
</div>
<h2 id="battery-tools">Battery Analysis Tools</h2>
<p>Visualize the battery behavior and performance of your app.</p>
<div class="dynamic-grid">
<div class="resource-widget resource-flow-layout landing col-12"
data-query="collection:tools/performance/battery"
data-cardSizes="9x3"
data-maxResults="4">
</div>
</div>