红帽全球峰会15.3. 通过 uprobes 记录的数据 perf 脚本输出
分析 uprobes 收集的数据的常见方法是运行 perf script 命令，该命令读取 perf.data 文件并显示记录的工作负载的详细追踪。
- 在 perf 脚本示例输出中
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在名为
my_prog的程序中，uprobe 被添加到函数isprime （） a是添加到uprobe的一个函数参数。或者，可以是在您添加uprobe的代码范围内可见的任意变量：# perf script my_prog 1367 [007] 10802159.906593: probe_my_prog:isprime: (400551) a=2 my_prog 1367 [007] 10802159.906623: probe_my_prog:isprime: (400551) a=3 my_prog 1367 [007] 10802159.906625: probe_my_prog:isprime: (400551) a=4 my_prog 1367 [007] 10802159.906627: probe_my_prog:isprime: (400551) a=5 my_prog 1367 [007] 10802159.906629: probe_my_prog:isprime: (400551) a=6 my_prog 1367 [007] 10802159.906631: probe_my_prog:isprime: (400551) a=7 my_prog 1367 [007] 10802159.906633: probe_my_prog:isprime: (400551) a=13 my_prog 1367 [007] 10802159.906635: probe_my_prog:isprime: (400551) a=17 my_prog 1367 [007] 10802159.906637: probe_my_prog:isprime: (400551) a=19
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