diff options
| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-29 21:18:11 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2007-10-29 21:18:11 +0100 |
| commit | 73a2bcb0edb9ffb0b007b3546b430e2c6e415eee (patch) | |
| tree | dd84f61589c7dd21b7be973c288611ffe547f21b /include/linux | |
| parent | sched: make kernel/sched.c:account_guest_time() static (diff) | |
| download | linux-dev-73a2bcb0edb9ffb0b007b3546b430e2c6e415eee.tar.xz linux-dev-73a2bcb0edb9ffb0b007b3546b430e2c6e415eee.zip | |
sched: keep utime/stime monotonic
keep utime/stime monotonic.
cpustats use utime/stime as a ratio against sum_exec_runtime, as a
consequence it can happen - when the ratio changes faster than time
accumulates - that either can be appear to go backwards.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 3c07d595979f..b0b1fe6e0b17 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1009,6 +1009,7 @@ struct task_struct { unsigned int rt_priority; cputime_t utime, stime, utimescaled, stimescaled; cputime_t gtime; + cputime_t prev_utime; unsigned long nvcsw, nivcsw; /* context switch counts */ struct timespec start_time; /* monotonic time */ struct timespec real_start_time; /* boot based time */ |