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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_a18918b93668b435612395bbc2e8b82b.html">linux</a></li> </ul>
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<div class="title">perf.hpp</div> </div>
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<a href="perf_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// or more contributor license agreements. See the NOTICE file</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// distributed with this work for additional information</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// to you under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">// with the License. You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#ifndef __PERF_HPP__</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define __PERF_HPP__</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;unistd.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;set&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="future_8hpp.html">process/future.hpp</a>&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="duration_8hpp.html">stout/duration.hpp</a>&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="hashmap_8hpp.html">stout/hashmap.hpp</a>&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="3rdparty_2stout_2include_2stout_2version_8hpp.html">stout/version.hpp</a>&gt;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment">// For PerfStatistics protobuf.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="include_2mesos_2mesos_8hpp.html">mesos/mesos.hpp</a>&quot;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="namespaceperf.html"> 34</a></span>&#160;<span class="keyword">namespace </span>perf {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="comment">// Sample the perf events for process(es) in the perf_event cgroups</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="comment">// for duration. The returned hashmap is keyed by cgroup.</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="comment">// NOTE: cgroups should be relative to the perf_event subsystem mount,</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="comment">// e.g., mesos/test for /sys/fs/cgroup/perf_event/mesos/test.</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<a class="code" href="classprocess_1_1Future.html">process::Future&lt;hashmap&lt;std::string, mesos::PerfStatistics&gt;</a>&gt; <a class="code" href="namespaceperf.html#a1da325bd0688dc480ff4d5159d620310">sample</a>(</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">const</span> std::set&lt;std::string&gt;&amp; events,</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">const</span> std::set&lt;std::string&gt;&amp; cgroups,</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keyword">const</span> <a class="code" href="classDuration.html">Duration</a>&amp; duration);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="comment">// Validate a set of events are accepted by `perf stat`.</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="keywordtype">bool</span> <a class="code" href="namespaceperf.html#ad4bda81f92db3821306ec856dfca9a77">valid</a>(<span class="keyword">const</span> std::set&lt;std::string&gt;&amp; events);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment">// Returns whether perf is supported on this host. Returns false if</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="comment">// the kernel is too old (requires &gt;= 2.6.39).</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="keywordtype">bool</span> <a class="code" href="namespaceperf.html#a305765234cd6747318f894ea1a5c0aef">supported</a>();</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="comment">// Note: The parse function is exposed to allow testing of the</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment">// multiple supported perf stat output formats.</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<a class="code" href="classTry.html">Try&lt;hashmap&lt;std::string, mesos::PerfStatistics&gt;</a>&gt; <a class="code" href="namespaceperf.html#a38f6b8b99bfe38c10b9ceb1d5d3d2002">parse</a>(</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keyword">const</span> std::string&amp; output,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">const</span> <a class="code" href="structVersion.html">Version</a>&amp; <a class="code" href="namespacemesos_1_1internal.html#a4311a7bd3d79fd1225d08444f8ff758a">version</a>);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;} <span class="comment">// namespace perf {</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="preprocessor">#endif // __PERF_HPP__</span></div>
<div class="ttc" id="classTry_html"><div class="ttname"><a href="classTry.html">Try</a></div><div class="ttdef"><b>Definition:</b> try.hpp:34</div></div>
<div class="ttc" id="include_2mesos_2mesos_8hpp_html"><div class="ttname"><a href="include_2mesos_2mesos_8hpp.html">mesos.hpp</a></div></div>
<div class="ttc" id="namespacemesos_1_1internal_html_a4311a7bd3d79fd1225d08444f8ff758a"><div class="ttname"><a href="namespacemesos_1_1internal.html#a4311a7bd3d79fd1225d08444f8ff758a">mesos::internal::version</a></div><div class="ttdeci">JSON::Object version()</div><div class="ttdef"><b>Definition:</b> version.hpp:32</div></div>
<div class="ttc" id="classDuration_html"><div class="ttname"><a href="classDuration.html">Duration</a></div><div class="ttdef"><b>Definition:</b> duration.hpp:32</div></div>
<div class="ttc" id="namespaceperf_html_ad4bda81f92db3821306ec856dfca9a77"><div class="ttname"><a href="namespaceperf.html#ad4bda81f92db3821306ec856dfca9a77">perf::valid</a></div><div class="ttdeci">bool valid(const std::set&lt; std::string &gt; &amp;events)</div></div>
<div class="ttc" id="3rdparty_2stout_2include_2stout_2version_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2version_8hpp.html">version.hpp</a></div></div>
<div class="ttc" id="namespaceperf_html_a38f6b8b99bfe38c10b9ceb1d5d3d2002"><div class="ttname"><a href="namespaceperf.html#a38f6b8b99bfe38c10b9ceb1d5d3d2002">perf::parse</a></div><div class="ttdeci">Try&lt; hashmap&lt; std::string, mesos::PerfStatistics &gt; &gt; parse(const std::string &amp;output, const Version &amp;version)</div></div>
<div class="ttc" id="duration_8hpp_html"><div class="ttname"><a href="duration_8hpp.html">duration.hpp</a></div></div>
<div class="ttc" id="namespaceperf_html_a305765234cd6747318f894ea1a5c0aef"><div class="ttname"><a href="namespaceperf.html#a305765234cd6747318f894ea1a5c0aef">perf::supported</a></div><div class="ttdeci">bool supported()</div></div>
<div class="ttc" id="namespaceperf_html_a1da325bd0688dc480ff4d5159d620310"><div class="ttname"><a href="namespaceperf.html#a1da325bd0688dc480ff4d5159d620310">perf::sample</a></div><div class="ttdeci">process::Future&lt; hashmap&lt; std::string, mesos::PerfStatistics &gt; &gt; sample(const std::set&lt; std::string &gt; &amp;events, const std::set&lt; std::string &gt; &amp;cgroups, const Duration &amp;duration)</div></div>
<div class="ttc" id="future_8hpp_html"><div class="ttname"><a href="future_8hpp.html">future.hpp</a></div></div>
<div class="ttc" id="structVersion_html"><div class="ttname"><a href="structVersion.html">Version</a></div><div class="ttdef"><b>Definition:</b> version.hpp:37</div></div>
<div class="ttc" id="hashmap_8hpp_html"><div class="ttname"><a href="hashmap_8hpp.html">hashmap.hpp</a></div></div>
<div class="ttc" id="classprocess_1_1Future_html"><div class="ttname"><a href="classprocess_1_1Future.html">process::Future</a></div><div class="ttdef"><b>Definition:</b> future.hpp:56</div></div>
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