005438a8ee
I.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 to
see 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 directory
Need 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 ones
in 'strace' and send it our way :-)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Milian Wolff <mail@milianw.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a42xklu59lcbxp7bbnic74a8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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45 lines
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perf-y += builtin-bench.o
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perf-y += builtin-annotate.o
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perf-y += builtin-diff.o
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perf-y += builtin-evlist.o
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perf-y += builtin-help.o
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perf-y += builtin-sched.o
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perf-y += builtin-buildid-list.o
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perf-y += builtin-buildid-cache.o
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perf-y += builtin-list.o
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perf-y += builtin-record.o
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perf-y += builtin-report.o
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perf-y += builtin-stat.o
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perf-y += builtin-timechart.o
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perf-y += builtin-top.o
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perf-y += builtin-script.o
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perf-y += builtin-kmem.o
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perf-y += builtin-lock.o
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perf-y += builtin-kvm.o
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perf-y += builtin-inject.o
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perf-y += builtin-mem.o
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perf-y += builtin-data.o
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perf-$(CONFIG_AUDIT) += builtin-trace.o
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perf-$(CONFIG_LIBELF) += builtin-probe.o
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perf-y += bench/
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perf-y += tests/
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perf-y += perf.o
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paths += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))"
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paths += -DPERF_INFO_PATH="BUILD_STR($(infodir_SQ))"
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paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
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CFLAGS_builtin-help.o += $(paths)
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CFLAGS_builtin-timechart.o += $(paths)
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CFLAGS_perf.o += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))" -include $(OUTPUT)PERF-VERSION-FILE
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CFLAGS_builtin-trace.o += -DSTRACE_GROUPS_DIR="BUILD_STR($(STRACE_GROUPS_DIR_SQ))"
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libperf-y += util/
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libperf-y += arch/
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libperf-y += ui/
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libperf-y += scripts/
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gtk-y += ui/gtk/
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