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bf2575c121
When enabled dumps a summary of all syscalls by task with the usual
statistics -- min, max, average and relative stddev. For example,
make - 26341 : 3344 [ 17.4% ] 0.000 ms
read : 52 0.000 4.802 0.644 30.08
write : 20 0.004 0.036 0.010 21.72
open : 24 0.003 0.046 0.014 23.68
close : 64 0.002 0.055 0.008 22.53
stat : 2714 0.002 0.222 0.004 4.47
fstat : 18 0.001 0.041 0.006 46.26
mmap : 30 0.003 0.009 0.006 5.71
mprotect : 8 0.006 0.039 0.016 32.16
munmap : 12 0.007 0.077 0.020 38.25
brk : 48 0.002 0.014 0.004 10.18
rt_sigaction : 18 0.002 0.002 0.002 2.11
rt_sigprocmask : 60 0.002 0.128 0.010 32.88
access : 2 0.006 0.006 0.006 0.00
pipe : 12 0.004 0.048 0.013 35.98
vfork : 34 0.448 0.980 0.692 3.04
execve : 20 0.000 0.387 0.046 56.66
wait4 : 34 0.017 9923.287 593.221 68.45
fcntl : 8 0.001 0.041 0.013 48.79
getdents : 48 0.002 0.079 0.013 19.62
getcwd : 2 0.005 0.005 0.005 0.00
chdir : 2 0.070 0.070 0.070 0.00
getrlimit : 2 0.045 0.045 0.045 0.00
arch_prctl : 2 0.002 0.002 0.002 0.00
setrlimit : 2 0.002 0.002 0.002 0.00
openat : 94 0.003 0.005 0.003 2.11
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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|---|---|---|
| .. | ||
| arch | ||
| bench | ||
| config | ||
| Documentation | ||
| python | ||
| scripts | ||
| tests | ||
| ui | ||
| util | ||
| .gitignore | ||
| bash_completion | ||
| builtin-annotate.c | ||
| builtin-bench.c | ||
| builtin-buildid-cache.c | ||
| builtin-buildid-list.c | ||
| builtin-diff.c | ||
| builtin-evlist.c | ||
| builtin-help.c | ||
| builtin-inject.c | ||
| builtin-kmem.c | ||
| builtin-kvm.c | ||
| builtin-list.c | ||
| builtin-lock.c | ||
| builtin-mem.c | ||
| builtin-probe.c | ||
| builtin-record.c | ||
| builtin-report.c | ||
| builtin-sched.c | ||
| builtin-script.c | ||
| builtin-stat.c | ||
| builtin-timechart.c | ||
| builtin-top.c | ||
| builtin-trace.c | ||
| builtin.h | ||
| command-list.txt | ||
| CREDITS | ||
| design.txt | ||
| Makefile | ||
| Makefile.perf | ||
| MANIFEST | ||
| perf-archive.sh | ||
| perf.c | ||
| perf.h | ||