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| author | Arjan van de Ven <arjan@linux.intel.com> | 2008-01-25 21:08:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-25 21:08:34 +0100 |
| commit | 9745512ce79de686df354dc70a8d1a74d801892d (patch) | |
| tree | 9b64e2b2e6d2ae534beef136922082f21701c7b9 /kernel/sysctl.c | |
| parent | 326587b840785c60f5dc18557235a23bafefd620 (diff) | |
| download | lwn-9745512ce79de686df354dc70a8d1a74d801892d.tar.gz lwn-9745512ce79de686df354dc70a8d1a74d801892d.zip | |
sched: latencytop support
LatencyTOP kernel infrastructure; it measures latencies in the
scheduler and tracks it system wide and per process.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 3afbd25f43eb..5418ef61e16e 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -81,6 +81,7 @@ extern int compat_log; extern int maps_protect; extern int sysctl_stat_interval; extern int audit_argv_kb; +extern int latencytop_enabled; /* Constants used for minimum and maximum */ #ifdef CONFIG_DETECT_SOFTLOCKUP @@ -416,6 +417,15 @@ static struct ctl_table kern_table[] = { .proc_handler = &proc_dointvec_taint, }, #endif +#ifdef CONFIG_LATENCYTOP + { + .procname = "latencytop", + .data = &latencytop_enabled, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif #ifdef CONFIG_SECURITY_CAPABILITIES { .procname = "cap-bound", |