Messages in this thread Patch in this message | | | Date | Tue, 3 Jun 2008 20:20:50 -0700 | From | Keika Kobayashi <> | Subject | [PATCH 2/4] per-task-delay-accounting: update taskstats for memory reclaim delay |
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Add members for memory reclaim delay to taskstats, and accumulate them in __delayacct_add_tsk() .
Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> --- On Wed, 04 Jun 2008 11:59:04 +0900 KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote:
> Hi > > > Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> > > --- > > Please write patch desctiption :)
Thank you for your comment. Here is update version.
include/linux/taskstats.h | 4 ++++ kernel/delayacct.c | 3 +++ 2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h index 5d69c07..87aae21 100644 --- a/include/linux/taskstats.h +++ b/include/linux/taskstats.h @@ -81,6 +81,10 @@ struct taskstats { __u64 swapin_count; __u64 swapin_delay_total;
+ /* Delay waiting for memory reclaim */ + __u64 freepages_count; + __u64 freepages_delay_total; + /* cpu "wall-clock" running time * On some architectures, value will adjust for cpu time stolen * from the kernel in involuntary waits due to virtualization. diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 84b6782..b3179da 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -145,8 +145,11 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) d->blkio_delay_total = (tmp < d->blkio_delay_total) ? 0 : tmp; tmp = d->swapin_delay_total + tsk->delays->swapin_delay; d->swapin_delay_total = (tmp < d->swapin_delay_total) ? 0 : tmp; + tmp = d->freepages_delay_total + tsk->delays->freepages_delay; + d->freepages_delay_total = (tmp < d->freepages_delay_total) ? 0 : tmp; d->blkio_count += tsk->delays->blkio_count; d->swapin_count += tsk->delays->swapin_count; + d->freepages_count += tsk->delays->freepages_count; spin_unlock_irqrestore(&tsk->delays->lock, flags);
done: -- 1.5.0.6
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