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<a href="secp256k1_2src_2bench_8h.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">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Copyright (c) 2014 Pieter Wuille *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * Distributed under the MIT software license, see the accompanying *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * file COPYING or http://www.opensource.org/licenses/mit-license.php.*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#ifndef _SECP256K1_BENCH_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#define _SECP256K1_BENCH_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;math.h&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;sys/time.h&quot;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="secp256k1_2src_2bench_8h.html#a41d54487866e6dee2a8ff6542cebf9c6"> 14</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">double</span> <a class="code" href="secp256k1_2src_2bench_8h.html#a41d54487866e6dee2a8ff6542cebf9c6">gettimedouble</a>(<span class="keywordtype">void</span>) {</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; <span class="keyword">struct </span>timeval tv;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; gettimeofday(&amp;tv, NULL);</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; <span class="keywordflow">return</span> tv.tv_usec * 0.000001 + tv.tv_sec;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;}</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683"> 20</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683">print_number</a>(<span class="keywordtype">double</span> x) {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keywordtype">double</span> y = x;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keywordtype">int</span> c = 0;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keywordflow">if</span> (y &lt; 0.0) {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; y = -y;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; }</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordflow">while</span> (y &lt; 100.0) {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; y *= 10.0;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; c++;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; }</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; printf(<span class="stringliteral">&quot;%.*f&quot;</span>, c, x);</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;}</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="secp256k1_2src_2bench_8h.html#a62a3537c97d14006568dd6f8b2bc5472"> 33</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="secp256k1_2src_2bench_8h.html#a62a3537c97d14006568dd6f8b2bc5472">run_benchmark</a>(<span class="keywordtype">char</span> *<a class="code" href="rest_8cpp.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>, <span class="keywordtype">void</span> (*<a class="code" href="namespacebenchmark.html">benchmark</a>)(<span class="keywordtype">void</span>*), <span class="keywordtype">void</span> (*<a class="code" href="namespacesetup.html">setup</a>)(<span class="keywordtype">void</span>*), <span class="keywordtype">void</span> (*teardown)(<span class="keywordtype">void</span>*), <span class="keywordtype">void</span>* <a class="code" href="namespacegen__base58__test__vectors.html#a8d12b07536a476098e3d74b6a79dfc9a">data</a>, <span class="keywordtype">int</span> <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>, <span class="keywordtype">int</span> iter) {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keywordtype">double</span> min = HUGE_VAL;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keywordtype">double</span> <a class="code" href="Examples_8cpp.html#a936f4b586a8f869a9d0d197cc5110653">sum</a> = 0.0;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordtype">double</span> max = 0.0;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keywordflow">for</span> (i = 0; i &lt; <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>; i++) {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordtype">double</span> begin, total;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="namespacesetup.html">setup</a> != NULL) {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; 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teardown(<a class="code" href="namespacegen__base58__test__vectors.html#a8d12b07536a476098e3d74b6a79dfc9a">data</a>);</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; <span class="keywordflow">if</span> (total &lt; min) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; min = total;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; }</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">if</span> (total &gt; max) {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; max = total;</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; <a class="code" href="Examples_8cpp.html#a936f4b586a8f869a9d0d197cc5110653">sum</a> += total;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; printf(<span class="stringliteral">&quot;%s: min &quot;</span>, <a class="code" href="rest_8cpp.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="code" href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683">print_number</a>(min * 1000000.0 / iter);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; printf(<span class="stringliteral">&quot;us / avg &quot;</span>);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <a class="code" href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683">print_number</a>((<a class="code" href="Examples_8cpp.html#a936f4b586a8f869a9d0d197cc5110653">sum</a> / <a class="code" href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a>) * 1000000.0 / iter);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; printf(<span class="stringliteral">&quot;us / max &quot;</span>);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683">print_number</a>(max * 1000000.0 / iter);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; printf(<span class="stringliteral">&quot;us\n&quot;</span>);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;}</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="namespacesetup_html"><div class="ttname"><a href="namespacesetup.html">setup</a></div><div class="ttdef"><b>Definition:</b> <a href="setup_8py_source.html#l00001">setup.py:1</a></div></div>
<div class="ttc" id="Examples_8cpp_html_a936f4b586a8f869a9d0d197cc5110653"><div class="ttname"><a href="Examples_8cpp.html#a936f4b586a8f869a9d0d197cc5110653">sum</a></div><div class="ttdeci">volatile double sum</div><div class="ttdef"><b>Definition:</b> <a href="Examples_8cpp_source.html#l00023">Examples.cpp:23</a></div></div>
<div class="ttc" id="namespacegen__base58__test__vectors_html_a8d12b07536a476098e3d74b6a79dfc9a"><div class="ttname"><a href="namespacegen__base58__test__vectors.html#a8d12b07536a476098e3d74b6a79dfc9a">gen_base58_test_vectors.data</a></div><div class="ttdeci">data</div><div class="ttdef"><b>Definition:</b> <a href="gen__base58__test__vectors_8py_source.html#l00123">gen_base58_test_vectors.py:123</a></div></div>
<div class="ttc" id="secp256k1_2src_2bench_8h_html_a62a3537c97d14006568dd6f8b2bc5472"><div class="ttname"><a href="secp256k1_2src_2bench_8h.html#a62a3537c97d14006568dd6f8b2bc5472">run_benchmark</a></div><div class="ttdeci">void run_benchmark(char *name, void(*benchmark)(void *), void(*setup)(void *), void(*teardown)(void *), void *data, int count, int iter)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2bench_8h_source.html#l00033">bench.h:33</a></div></div>
<div class="ttc" id="secp256k1_2src_2bench_8h_html_aa394e0046305c3b181f7d7cebf5f7683"><div class="ttname"><a href="secp256k1_2src_2bench_8h.html#aa394e0046305c3b181f7d7cebf5f7683">print_number</a></div><div class="ttdeci">void print_number(double x)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2bench_8h_source.html#l00020">bench.h:20</a></div></div>
<div class="ttc" id="rest_8cpp_html_a8f8f80d37794cde9472343e4487ba3eb"><div class="ttname"><a href="rest_8cpp.html#a8f8f80d37794cde9472343e4487ba3eb">name</a></div><div class="ttdeci">const char * name</div><div class="ttdef"><b>Definition:</b> <a href="rest_8cpp_source.html#l00037">rest.cpp:37</a></div></div>
<div class="ttc" id="namespacebenchmark_html"><div class="ttname"><a href="namespacebenchmark.html">benchmark</a></div><div class="ttdef"><b>Definition:</b> <a href="bench_2bench_8h_source.html#l00037">bench.h:37</a></div></div>
<div class="ttc" id="tests_8c_html_ad43c3812e6d13e0518d9f8b8f463ffcf"><div class="ttname"><a href="tests_8c.html#ad43c3812e6d13e0518d9f8b8f463ffcf">count</a></div><div class="ttdeci">static int count</div><div class="ttdef"><b>Definition:</b> <a href="tests_8c_source.html#l00041">tests.c:41</a></div></div>
<div class="ttc" id="secp256k1_2src_2bench_8h_html_a41d54487866e6dee2a8ff6542cebf9c6"><div class="ttname"><a href="secp256k1_2src_2bench_8h.html#a41d54487866e6dee2a8ff6542cebf9c6">gettimedouble</a></div><div class="ttdeci">static double gettimedouble(void)</div><div class="ttdef"><b>Definition:</b> <a href="secp256k1_2src_2bench_8h_source.html#l00014">bench.h:14</a></div></div>
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