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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-07-13 17:24:20 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2013-08-14 17:14:55 +0200 |
| commit | b854fafa4e06c50a92e00b39d75ee62083d986d6 (patch) | |
| tree | 46dbf41c4842d237d9c93ad24ef2ad1d7373f60e /kernel/sched | |
| parent | vtime: Optimize full dynticks accounting off case with static keys (diff) | |
| download | linux-b854fafa4e06c50a92e00b39d75ee62083d986d6.tar.xz linux-b854fafa4e06c50a92e00b39d75ee62083d986d6.zip | |
vtime: Always scale generic vtime accounting results
The cputime accounting in full dynticks can be a subtle
mixup of CPUs using tick based accounting and others using
generic vtime.
As long as the tick can have a share on producing these stats, we
want to scale the result against CFS precise accounting as the tick
can miss some task hiding between the periodic interrupt.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/cputime.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 0831b06aab97..e9e742ed7280 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -553,12 +553,6 @@ static void cputime_adjust(struct task_cputime *curr, { cputime_t rtime, stime, utime, total; - if (vtime_accounting_enabled()) { - *ut = curr->utime; - *st = curr->stime; - return; - } - stime = curr->stime; total = stime + curr->utime; |