cf2f33a4 - perf trace: Add read/write to the file group

Fri, 04 Sep 2015 16:22:06 +0000

perf trace: Add read/write to the file groupCc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-l6812iuai3g486z3mn8ufan8@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/trace/strace/groups/file

005438a8 - perf trace: Support 'strace' syscall event groups

Mon, 20 Jul 2015 15:02:09 +0000

perf trace: Support 'strace' syscall event groupsI.e.: $ cat ~/share/perf-core/strace/groups/file access chmod creat execve faccessat getcwd lstat mkdir open openat quotactl readlink rename rmdir stat statfs symlink unlink $Then, on a quiet desktop, try running this and then moving your mouse tosee the deluge of mouse related activity: # perf probe 'vfs_getname=getname_flags:72 pathname=filename:string' Added new event: probe:vfs_getname (on getname_flags:72 with pathname=filename:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # # trace --ev probe:vfs_getname --filter-pids 2232 -e file 0.042 (0.042 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.042 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/xterm") 0.100 (0.100 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.142 (0.018 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.142 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/index.theme") 0.192 (0.069 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directory 0.230 (0.017 ms): mousetweaks/2235 open(filename: 0x14c3c10, mode: 438 ) ... 0.230 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/usr/share/icons/Adwaita/cursors/xterm") 0.253 (0.041 ms): mousetweaks/2235 ... [continued]: open()) = 14 0.459 (0.008 ms): mousetweaks/2235 open(filename: 0x14e3910, mode: 438 ) ... 0.459 ( ): probe:vfs_getname:(ffffffff812230bc) pathname="/home/acme/.icons/Adwaita/cursors/left_side") 0.468 (0.017 ms): mousetweaks/2235 ... [continued]: open()) = -1 ENOENT No such file or directoryNeed to combine that raw_syscalls:sys_enter(open) + probe:vfs_getname +raw_syscalls:sys_exit(open) sequence...Now, if you're bored, please write some more syscall groups, like the onesin 'strace' and send it our way :-)Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Milian Wolff Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux-6.15/tools/perf/trace/strace/groups/file

Changes in file

cf2f33a4 - perf trace: Add read/write to the file group

005438a8 - perf trace: Support 'strace' syscall event groups