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Diffstat (limited to 'tools/perf/Documentation/perf-trace.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 3bb89c2e9020..abc9b5d83312 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -146,6 +146,10 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. Show all syscalls followed by a summary by thread with min, max, and average times (in msec) and relative stddev. +--errno-summary:: + To be used with -s or -S, to show stats for the errnos experienced by + syscalls, using only this option will trigger --summary. + --tool_stats:: Show tool stats such as number of times fd->pathname was discovered thru hooking the open syscall return + vfs_getname or via reading /proc/pid/fd, etc. |