Prof 是 Linux 的自容器 C/C++ 分析工具库。
Prof 提供一个快速的方法来度量 C/C++ 代码片段的性能事件 (CPU 时钟周期等等) 。
小示例：
#include "prof.h"int main() { PROF_START(); // slow code goes here... PROF_STDOUT(); }
自定义选项
#include <stdio.h> #define PROF_USER_EVENTS_ONLY #define PROF_EVENT_LIST \ PROF_EVENT_CACHE(L1D, READ, MISS) \ PROF_EVENT_CACHE(L1D, WRITE, MISS) #include "prof.h" int main() { uint64_t faults[2] = { 0 }; PROF_START(); // slow code goes here... PROF_DO(faults[index] += counter); // fast or uninteresting code goes here... PROF_START(); // slow code goes here... PROF_DO(faults[index] += counter); printf("Total L1 faults: R = %lu; W = %lu\n", faults[0], faults[1]); }
安装
wget -q https://raw.githubusercontent.com/cyrus-and/prof/master/prof.h
