perf trace跟踪系统调用
生活随笔
收集整理的這篇文章主要介紹了
perf trace跟踪系统调用
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
perf trace -p $pid --duration 50
命令輸出如下：
0.076 (1249.922 ms): epoll_wait(epfd: 4<anon_inode:[eventpoll]>, events: 0x7ffe92ab3af0, maxevents: 36, timeout: 4294967295) = 11250.074 (1249.927 ms): epoll_wait(epfd: 4<anon_inode:[eventpoll]>, events: 0x7ffe92ab3af0, maxevents: 36, timeout: 4294967295) = 12500.076 (1249.924 ms): epoll_wait(epfd: 4<anon_inode:[eventpoll]>, events: 0x7ffe92ab3af0, maxevents: 36, timeout: 4294967295) = 1 perf trace -p $pid --duration 50 --call-graph dwarf -o savefile.txt命令輸出如下：
0.409 (1249.593 ms): epoll_wait(epfd: 4<anon_inode:[eventpoll]>, events: 0x7ffe92ab3af0, maxevents: 36, timeout: 4294967295) = 1[0xffff80d79646ceb3] (/usr/lib64/libc-2.17.so)[0xffffaa31d86cf058] (/usr/lib/systemd/systemd)[0xffffaa31d86cfb6c] (/usr/lib/systemd/systemd)[0xffffaa31d862db82] (/usr/lib/systemd/systemd)[0xffffaa31d8621f27] (/usr/lib/systemd/systemd)__libc_start_main (/usr/lib64/libc-2.17.so)[0xffffaa31d8623f8b] (/usr/lib/systemd/systemd)總結
以上是生活随笔為你收集整理的perf trace跟踪系统调用的全部內容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 杀手皇后
- 下一篇： 计算机画面隐藏重叠怎么分开,window