lkml.org 
[lkml]   [2014]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/core] perf timechart: Conditionally update start_time on fork
Commit-ID:  962e310af5dff432745ae7494096ed54b752e63e
Gitweb: http://git.kernel.org/tip/962e310af5dff432745ae7494096ed54b752e63e
Author: Stanislav Fomichev <stfomichev@yandex-team.ru>
AuthorDate: Tue, 8 Jul 2014 20:03:42 +0400
Committer: Jiri Olsa <jolsa@kernel.org>
CommitDate: Thu, 10 Jul 2014 00:22:54 +0200

perf timechart: Conditionally update start_time on fork

We don't need to overwrite current task start_time on fork, so update it
only if it's zero.

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/n/1404835423-23098-4-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-timechart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 4079062..37bf1eb 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -242,7 +242,7 @@ static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp)
pid_set_comm(tchart, pid, pp->current->comm);

p->start_time = timestamp;
- if (p->current) {
+ if (p->current && !p->current->start_time) {
p->current->start_time = timestamp;
p->current->state_since = timestamp;
}

\
 
 \ /
  Last update: 2014-07-16 23:21    [W:0.099 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site