| commit | e53bf23f1c33076090b51184b82af4dd98d0c51c | [log] [tgz] |
|---|---|---|
| author | Mark Hills <Mark.Hills@framestore.com> | Wed May 28 17:52:40 2014 +0100 |
| committer | Dmitry V. Levin <ldv@altlinux.org> | Thu May 29 18:15:38 2014 +0000 |
| tree | b41cd1f1b1e0ab69be2cd4f0810426cf4a0f2711 | |
| parent | ac5133d0cb5c18a39f6fa9b7ca2ebcba9277a904 [diff] |
Optionally produce stats on syscall latency Time spent in system time is not useful where a syscall depends on some non-CPU resource, eg. typically open() or stat() to a network drive. This patch adds a new flag (-w) to produce a summary of the time difference between beginning and end of the system call (ie. latency) This functionality has been useful to profile slow processes that are not CPU-bound. Signed-off-by: Mark Hills <mark.hills@framestore.com>