From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 5 Jun 2008 16:32:20 -0700 From: Keika Kobayashi Subject: [PATCH 2/3 v2] per-task-delay-accounting: update taskstats for memory reclaim delay Message-Id: <20080605163220.8397bed6.kobayashi.kk@ncos.nec.co.jp> In-Reply-To: <20080605162759.a6adf291.kobayashi.kk@ncos.nec.co.jp> References: <20080605162759.a6adf291.kobayashi.kk@ncos.nec.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Keika Kobayashi Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, nagar@watson.ibm.com, balbir@in.ibm.com, sekharan@us.ibm.com, kosaki.motohiro@jp.fujitsu.com, kamezawa.hiroyu@jp.fujitsu.com List-ID: Add members for memory reclaim delay to taskstats, and accumulate them in __delayacct_add_tsk() . Signed-off-by: Keika Kobayashi --- 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org