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184 lines
2.7 KiB
Markdown
184 lines
2.7 KiB
Markdown
# Benchmarks
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## CallbackList invoking VS native function invoking
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Hardware: Intel(R) Xeon(R) CPU E3-1225 V2 @ 3.20GHz
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Software: Windows 10, MSVC 2017, MinGW GCC 7.2.0
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Iterations: 100,100,100
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Time unit: milliseconds
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<table>
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<tr>
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<th>Function</th>
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<th>Compiler</th>
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<th>Native invoking</th>
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<th>CallbackList single threading</th>
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<th>CallbackList multi threading</th>
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</tr>
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<tr>
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<td rowspan="2">Inline global function</td>
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<td>MSVC 2017</td>
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<td>217</td>
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<td>1501</td>
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<td>6921</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>187</td>
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<td>1489</td>
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<td>4463</td>
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</tr>
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<tr>
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<td rowspan="2">Non-inline global function</td>
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<td>MSVC 2017</td>
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<td>241</td>
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<td>1526</td>
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<td>6544</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>233</td>
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<td>1488</td>
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<td>4787</td>
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</tr>
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<tr>
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<td rowspan="2">Function object</td>
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<td>MSVC 2017</td>
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<td>194</td>
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<td>1498</td>
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<td>6433</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>212</td>
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<td>1485</td>
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<td>4951</td>
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</tr>
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<tr>
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<td rowspan="2">Member virtual function</td>
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<td>MSVC 2017</td>
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<td>207</td>
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<td>1533</td>
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<td>6558</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>212</td>
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<td>1485</td>
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<td>4489</td>
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</tr>
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<tr>
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<td rowspan="2">Member non-virtual function</td>
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<td>MSVC 2017</td>
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<td>214</td>
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<td>1533</td>
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<td>6390</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>211</td>
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<td>1486</td>
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<td>4872</td>
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</tr>
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<tr>
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<td rowspan="2">Member non-inline virtual function</td>
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<td>MSVC 2017</td>
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<td>206</td>
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<td>1522</td>
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<td>6578</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>182</td>
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<td>1666</td>
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<td>4593</td>
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</tr>
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<tr>
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<td rowspan="2">Member non-inline non-virtual function</td>
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<td>MSVC 2017</td>
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<td>206</td>
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<td>1491</td>
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<td>6992</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>205</td>
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<td>1486</td>
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<td>4490</td>
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</tr>
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<tr>
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<td rowspan="2">All functions</td>
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<td>MSVC 2017</td>
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<td>1374</td>
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<td>10951</td>
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<td>29973</td>
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</tr>
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<tr>
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<td>GCC 7.2</td>
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<td>1223</td>
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<td>9770</td>
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<td>22958</td>
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</tr>
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</table>
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Testing functions
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```c++
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#if defined(_MSC_VER)
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#define NON_INLINE __declspec(noinline)
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#else
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// gcc
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#define NON_INLINE __attribute__((noinline))
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#endif
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volatile int globalValue = 0;
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void globalFunction(int a, const int b)
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{
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globalValue += a + b;
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}
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NON_INLINE void nonInlineGlobalFunction(int a, const int b)
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{
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globalValue += a + b;
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}
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struct FunctionObject
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{
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void operator() (int a, const int b)
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{
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globalValue += a + b;
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}
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virtual void virFunc(int a, const int b)
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{
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globalValue += a + b;
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}
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void nonVirFunc(int a, const int b)
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{
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globalValue += a + b;
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}
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NON_INLINE virtual void nonInlineVirFunc(int a, const int b)
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{
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globalValue += a + b;
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}
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NON_INLINE void nonInlineNonVirFunc(int a, const int b)
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{
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globalValue += a + b;
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}
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};
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#undef NON_INLINE
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```
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