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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-03 11:56:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-03 11:56:24 -0800 |
| commit | 61420f59a589c0668f70cbe725785837c78ece90 (patch) | |
| tree | 79ae77d731cd2425677b9527d50079d8cf34c3b2 /arch/powerpc/kernel/time.c | |
| parent | d97106ab53f812910a62d18afb9dbe882819c1ba (diff) | |
| parent | c742b31c03f37c5c499178f09f57381aa6c70131 (diff) | |
| download | kernel_samsung_smdk4412-61420f59a589c0668f70cbe725785837c78ece90.tar.gz kernel_samsung_smdk4412-61420f59a589c0668f70cbe725785837c78ece90.tar.bz2 kernel_samsung_smdk4412-61420f59a589c0668f70cbe725785837c78ece90.zip | |
Merge branch 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[PATCH] fast vdso implementation for CLOCK_THREAD_CPUTIME_ID
[PATCH] improve idle cputime accounting
[PATCH] improve precision of idle time detection.
[PATCH] improve precision of process accounting.
[PATCH] idle cputime accounting
[PATCH] fix scaled & unscaled cputime accounting
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 99f1ddd6858..c9564031a2a 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -256,8 +256,10 @@ void account_system_vtime(struct task_struct *tsk) delta += sys_time; get_paca()->system_time = 0; } - account_system_time(tsk, 0, delta); - account_system_time_scaled(tsk, deltascaled); + if (in_irq() || idle_task(smp_processor_id()) != tsk) + account_system_time(tsk, 0, delta, deltascaled); + else + account_idle_time(delta); per_cpu(cputime_last_delta, smp_processor_id()) = delta; per_cpu(cputime_scaled_last_delta, smp_processor_id()) = deltascaled; local_irq_restore(flags); @@ -275,10 +277,8 @@ void account_process_tick(struct task_struct *tsk, int user_tick) utime = get_paca()->user_time; get_paca()->user_time = 0; - account_user_time(tsk, utime); - utimescaled = cputime_to_scaled(utime); - account_user_time_scaled(tsk, utimescaled); + account_user_time(tsk, utime, utimescaled); } /* @@ -338,8 +338,12 @@ void calculate_steal_time(void) tb = mftb(); purr = mfspr(SPRN_PURR); stolen = (tb - pme->tb) - (purr - pme->purr); - if (stolen > 0) - account_steal_time(current, stolen); + if (stolen > 0) { + if (idle_task(smp_processor_id()) != current) + account_steal_time(stolen); + else + account_idle_time(stolen); + } pme->tb = tb; pme->purr = purr; } |