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| <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef SINGA_UTILS_TIMER_H</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define SINGA_UTILS_TIMER_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <chrono></span></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">namespace </span><a class="code" href="namespacesinga.html">singa</a> {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classsinga_1_1Timer.html"> 27</a></span> <span class="keyword">class </span><a class="code" href="classsinga_1_1Timer.html">Timer</a> {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">typedef</span> std::chrono::duration<int> Seconds;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">typedef</span> std::chrono::duration<int, std::milli> Milliseconds;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">typedef</span> std::chrono::duration<int, std::ratio<60 * 60>> Hours;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">typedef</span> std::chrono::duration<int, std::micro> Microseconds;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classsinga_1_1Timer.html#a6cfa2e79d680a01774e1846ed0585b16"> 35</a></span>  <a class="code" href="classsinga_1_1Timer.html#a6cfa2e79d680a01774e1846ed0585b16">Timer</a>() { <a class="code" href="classsinga_1_1Timer.html#a144cdf92b81d46823d1f179b14fabe0c">Tick</a>(); }</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classsinga_1_1Timer.html#a144cdf92b81d46823d1f179b14fabe0c"> 37</a></span>  <span class="keywordtype">void</span> <a class="code" href="classsinga_1_1Timer.html#a144cdf92b81d46823d1f179b14fabe0c">Tick</a>() { last_ = std::chrono::high_resolution_clock::now(); }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T = Milliseconds></div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classsinga_1_1Timer.html#a57c7e3e0dc694917ecbbd6682fdc23d8"> 42</a></span>  <span class="keywordtype">int</span> <a class="code" href="classsinga_1_1Timer.html#a57c7e3e0dc694917ecbbd6682fdc23d8">Elapsed</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  static_assert(std::is_same<T, Seconds>::value ||</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  std::is_same<T, Milliseconds>::value ||</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  std::is_same<T, Hours>::value ||</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  std::is_same<T, Microseconds>::value,</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="stringliteral">"Template arg must be Seconds | Milliseconds | Hours | Microseconds"</span>);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">auto</span> now = std::chrono::high_resolution_clock::now();</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> std::chrono::duration_cast<T>(now - last_).count();</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// std::string CurrentTime();</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="keyword">private</span>:</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  std::chrono::high_resolution_clock::time_point last_;</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> }</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classsinga_1_1Timer_html_a57c7e3e0dc694917ecbbd6682fdc23d8"><div class="ttname"><a href="classsinga_1_1Timer.html#a57c7e3e0dc694917ecbbd6682fdc23d8">singa::Timer::Elapsed</a></div><div class="ttdeci">int Elapsed() const</div><div class="ttdoc">Return the duration since last call to Tick() or since the creation of Timer. </div><div class="ttdef"><b>Definition:</b> timer.h:42</div></div> |
| <div class="ttc" id="classsinga_1_1Timer_html_a144cdf92b81d46823d1f179b14fabe0c"><div class="ttname"><a href="classsinga_1_1Timer.html#a144cdf92b81d46823d1f179b14fabe0c">singa::Timer::Tick</a></div><div class="ttdeci">void Tick()</div><div class="ttdoc">Reset the internal time point to the current time. </div><div class="ttdef"><b>Definition:</b> timer.h:37</div></div> |
| <div class="ttc" id="classsinga_1_1Timer_html_a6cfa2e79d680a01774e1846ed0585b16"><div class="ttname"><a href="classsinga_1_1Timer.html#a6cfa2e79d680a01774e1846ed0585b16">singa::Timer::Timer</a></div><div class="ttdeci">Timer()</div><div class="ttdoc">Init the internal time point to the current time. </div><div class="ttdef"><b>Definition:</b> timer.h:35</div></div> |
| <div class="ttc" id="classsinga_1_1Timer_html"><div class="ttname"><a href="classsinga_1_1Timer.html">singa::Timer</a></div><div class="ttdoc">For benchmarking the time cost of operations. </div><div class="ttdef"><b>Definition:</b> timer.h:27</div></div> |
| <div class="ttc" id="namespacesinga_html"><div class="ttname"><a href="namespacesinga.html">singa</a></div><div class="ttdoc">Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements...</div><div class="ttdef"><b>Definition:</b> common.h:48</div></div> |
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