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<div class="title">WallClockTimer.hpp</div> </div>
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<a href="_wall_clock_timer_8hpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright © 2017 Arm Ltd. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "<a class="code" href="_instrument_8hpp.xhtml">Instrument.hpp</a>"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <chrono></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="_dll_export_8hpp.xhtml">DllExport.hpp</a>"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> {</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#if defined(CLOCK_MONOTONIC_RAW) && defined(__unix__)</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#define USE_CLOCK_MONOTONIC_RAW 1</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="_wall_clock_timer_8hpp.xhtml#ae7adfc4258f7ff8ba7d8c3f7c9372a3f"> 18</a></span> <span class="preprocessor">#define USE_CLOCK_MONOTONIC_RAW 0</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#if USE_CLOCK_MONOTONIC_RAW</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">class </span>MonotonicClockRaw</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">using</span> duration = std::chrono::nanoseconds;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">using</span> time_point = std::chrono::time_point<MonotonicClockRaw, duration>;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">static</span> std::chrono::time_point<MonotonicClockRaw, std::chrono::nanoseconds> now() noexcept</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  timespec ts;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  clock_gettime(CLOCK_MONOTONIC_RAW, &ts);</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> time_point(std::chrono::nanoseconds(ts.tv_sec * 1000000000 + ts.tv_nsec));</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> };</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// Implementation of an instrument to measure elapsed wall-clock time in microseconds.</span></div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classarmnn_1_1_wall_clock_timer.xhtml"> 38</a></span> <span class="keyword">class </span><a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml">WallClockTimer</a> : <span class="keyword">public</span> <a class="code" href="classarmnn_1_1_instrument.xhtml">Instrument</a></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// Construct a Wall Clock Timer</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml">WallClockTimer</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  ~<a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml">WallClockTimer</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// Start the Wall clock timer</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">void</span> Start() <span class="keyword">override</span>;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// Stop the Wall clock timer</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">void</span> Stop() <span class="keyword">override</span>;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// Get the name of the timer</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* GetName() <span class="keyword">const override</span>;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Get the recorded measurements</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  std::vector<Measurement> GetMeasurements() <span class="keyword">const override</span>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#if USE_CLOCK_MONOTONIC_RAW</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">using</span> <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml#a5416ef5623955b5210ee09ce14d24a58">clock</a> = MonotonicClockRaw;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="classarmnn_1_1_wall_clock_timer.xhtml#a5416ef5623955b5210ee09ce14d24a58"> 60</a></span>  <span class="keyword">using</span> <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml#a5416ef5623955b5210ee09ce14d24a58">clock</a> = std::chrono::steady_clock;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classarmnn_1_1_wall_clock_timer.xhtml#aece42eedfcac1aa046e0dff4763b300a"> 63</a></span>  <a class="code" href="_dll_export_8hpp.xhtml#a935d9ad2f22d42a703b8b31465796137">ARMNN_DLLEXPORT</a> <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml#aece42eedfcac1aa046e0dff4763b300a">WALL_CLOCK_TIME</a>;</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classarmnn_1_1_wall_clock_timer.xhtml#aef02e15721d757f07f3812f09fc892d4"> 64</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml#aef02e15721d757f07f3812f09fc892d4">WALL_CLOCK_TIME_START</a>;</div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classarmnn_1_1_wall_clock_timer.xhtml#abd358345fde773d79e57461c1b062703"> 65</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classarmnn_1_1_wall_clock_timer.xhtml#abd358345fde773d79e57461c1b062703">WALL_CLOCK_TIME_STOP</a>;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  clock::time_point m_Start;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  clock::time_point m_Stop;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> };</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> } <span class="comment">//namespace armnn</span></div><div class="ttc" id="classarmnn_1_1_wall_clock_timer_xhtml"><div class="ttname"><a href="classarmnn_1_1_wall_clock_timer.xhtml">armnn::WallClockTimer</a></div><div class="ttdef"><b>Definition:</b> <a href="_wall_clock_timer_8hpp_source.xhtml#l00038">WallClockTimer.hpp:38</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2021 ARM Limited and Contributors. </div><div class="ttdef"><b>Definition:</b> <a href="01__00__software__tools_8dox_source.xhtml#l00006">01_00_software_tools.dox:6</a></div></div>
<div class="ttc" id="_dll_export_8hpp_xhtml_a935d9ad2f22d42a703b8b31465796137"><div class="ttname"><a href="_dll_export_8hpp.xhtml#a935d9ad2f22d42a703b8b31465796137">ARMNN_DLLEXPORT</a></div><div class="ttdeci">#define ARMNN_DLLEXPORT</div><div class="ttdef"><b>Definition:</b> <a href="_dll_export_8hpp_source.xhtml#l00017">DllExport.hpp:17</a></div></div>
<div class="ttc" id="classarmnn_1_1_wall_clock_timer_xhtml_abd358345fde773d79e57461c1b062703"><div class="ttname"><a href="classarmnn_1_1_wall_clock_timer.xhtml#abd358345fde773d79e57461c1b062703">armnn::WallClockTimer::WALL_CLOCK_TIME_STOP</a></div><div class="ttdeci">static const std::string WALL_CLOCK_TIME_STOP</div><div class="ttdef"><b>Definition:</b> <a href="_wall_clock_timer_8hpp_source.xhtml#l00065">WallClockTimer.hpp:65</a></div></div>
<div class="ttc" id="classarmnn_1_1_wall_clock_timer_xhtml_aef02e15721d757f07f3812f09fc892d4"><div class="ttname"><a href="classarmnn_1_1_wall_clock_timer.xhtml#aef02e15721d757f07f3812f09fc892d4">armnn::WallClockTimer::WALL_CLOCK_TIME_START</a></div><div class="ttdeci">static const std::string WALL_CLOCK_TIME_START</div><div class="ttdef"><b>Definition:</b> <a href="_wall_clock_timer_8hpp_source.xhtml#l00064">WallClockTimer.hpp:64</a></div></div>
<div class="ttc" id="classarmnn_1_1_wall_clock_timer_xhtml_aece42eedfcac1aa046e0dff4763b300a"><div class="ttname"><a href="classarmnn_1_1_wall_clock_timer.xhtml#aece42eedfcac1aa046e0dff4763b300a">armnn::WallClockTimer::WALL_CLOCK_TIME</a></div><div class="ttdeci">static const std::string WALL_CLOCK_TIME</div><div class="ttdef"><b>Definition:</b> <a href="_wall_clock_timer_8hpp_source.xhtml#l00063">WallClockTimer.hpp:63</a></div></div>
<div class="ttc" id="classarmnn_1_1_wall_clock_timer_xhtml_a5416ef5623955b5210ee09ce14d24a58"><div class="ttname"><a href="classarmnn_1_1_wall_clock_timer.xhtml#a5416ef5623955b5210ee09ce14d24a58">armnn::WallClockTimer::clock</a></div><div class="ttdeci">std::chrono::steady_clock clock</div><div class="ttdef"><b>Definition:</b> <a href="_wall_clock_timer_8hpp_source.xhtml#l00060">WallClockTimer.hpp:60</a></div></div>
<div class="ttc" id="_instrument_8hpp_xhtml"><div class="ttname"><a href="_instrument_8hpp.xhtml">Instrument.hpp</a></div></div>
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<div class="ttc" id="classarmnn_1_1_instrument_xhtml"><div class="ttname"><a href="classarmnn_1_1_instrument.xhtml">armnn::Instrument</a></div><div class="ttdef"><b>Definition:</b> <a href="_instrument_8hpp_source.xhtml#l00051">Instrument.hpp:51</a></div></div>
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