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<div class="smartperf smartperf-preview" style="min-height: 99vh;">
<h1 class="mume-header fontColor">FFRT抓取和展示说明</h1>
<p class="fontColor">FFRT分析模块可以帮助系统调优人员进行FFRT 线程调优检测。</p>
<h2 class="mume-header fontColor">FFRT的抓取</h2>
<h4 class="mume-header fontColor" id="header-index-1">FFRT的抓取配置参数</h4>
<p class="fontColor">
选择Record new trace，进入FFRT 配置页面，打开Start FFRT Record开关，抓取FFRT数据。
<br />
<img src="../figures/FFRT/ffrtconfig.jpg" alt="GitHub Logo" />
</p>
<p class="fontColor">
配置项说明：
</p>
<ul class="fontColor">
<li>
<pre class="smartperf-text fontColor light">
Process：进程。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Startup Process：冷启动进程。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Restart Process：热启动进程。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Use Block：采用Block模式，默认开启。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Smb Pages Size：Smb配置大小，默认16384。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
flush interval：刷新间隔，默认为5。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Clock Id：时钟id，默认为BOOTTIME。
</pre>
</li>
</ul>
<h3 class="mume-header fontColor" id="header-index-2">FFRT展示说明</h3>
<p class="fontColor">
将抓取的trace文件导入到HiSmartPerf工具中，查看对应信息。
<br />
<img src="../figures/FFRT/ffrtrow.jpg" alt="GitHub Logo" />
</p>
<h3 class="mume-header fontColor" id="header-index-3">FFRT泳道图的点选功能</h3>
<p class="fontColor">
可以对泳道的各个slice进行点选，点选后在最下方的弹出层中会展示点选数据的统计的tab页。
<br />
<img src="../figures/FFRT/ffrtcurrentselectiontab.jpg" alt="GitHub Logo" />
</p>
<ul class="fontColor">
<li>
<pre class="smartperf-text fontColor light">
Name：名称。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Process：进程名。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Thread：线程名。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
StartTime(Relative)：开始时间（相对时间）。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
StartTime(Absolute)：开始时间（绝对时间）。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Duration：持续时间。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
depth：深度。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Information：trace点信息。
</pre>
</li>
</ul>
<h3 class="mume-header fontColor" id="header-index-3">FFRT泳道图的框选功能</h3>
<p class="fontColor">
框选FFRT的泳道图，展示Slices tab页。
<br />
<img src="../figures/FFRT/ffrtslicestab.jpg" alt="GitHub Logo" />
</p>
<ul class="fontColor">
<li>
<pre class="smartperf-text fontColor light">
Name：名称。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Wall duration(ms)：总持续时长。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Avg Wall duration(ms)：平均持续时长。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
Occurrences：发生次数。
</pre>
</li>
<li>
<pre class="smartperf-text fontColor light">
selfTime(ms)：自身时长。
</pre>
</li>
</ul>
</div>
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