From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Christoph Lameter <cl@linux-foundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"hugh.dickins@tiscali.co.uk" <hugh.dickins@tiscali.co.uk>,
akpm@linux-foundation.org,
"kosaki.motohiro@jp.fujitsu.com" <kosaki.motohiro@jp.fujitsu.com>
Subject: Re: [PATCH] show per-process swap usage via procfs
Date: Thu, 5 Nov 2009 09:06:59 +0900 [thread overview]
Message-ID: <20091105090659.9a5d17b1.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.1.10.0911041414560.7409@V090114053VZO-1>
On Wed, 4 Nov 2009 14:15:40 -0500 (EST)
Christoph Lameter <cl@linux-foundation.org> wrote:
> On Wed, 4 Nov 2009, KAMEZAWA Hiroyuki wrote:
>
> > Now, anon_rss and file_rss is counted as RSS and exported via /proc.
> > RSS usage is important information but one more information which
> > is often asked by users is "usage of swap".(user support team said.)
>
> Hmmm... Could we do some rework of the counters first so that they are per
> cpu?
>
I don't think swap_usage counter has much costs because it's call path
is always slow path. But, I'm not in hurry. So rework is ok.
I'll post my percpu array counter with some rework, CCing you.
Maybe it can be used in this case.
Thanks,
-Kame
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next prev parent reply other threads:[~2009-11-05 0:09 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-04 6:24 KAMEZAWA Hiroyuki
2009-11-04 19:15 ` Christoph Lameter
2009-11-04 23:25 ` KOSAKI Motohiro
2009-11-05 2:28 ` KAMEZAWA Hiroyuki
2009-11-05 15:04 ` Christoph Lameter
2009-11-08 17:04 ` Pavel Machek
2009-11-05 0:06 ` KAMEZAWA Hiroyuki [this message]
2009-11-05 5:16 ` [RFC][PATCH] lib: generic percpu counter array KAMEZAWA Hiroyuki
2009-11-05 15:15 ` Christoph Lameter
2009-11-06 0:49 ` KAMEZAWA Hiroyuki
2009-11-05 15:20 ` Christoph Lameter
2009-11-06 0:56 ` KAMEZAWA Hiroyuki
2009-11-05 14:41 ` [PATCH] show per-process swap usage via procfs KOSAKI Motohiro
2009-11-05 15:11 ` Minchan Kim
2009-11-05 23:48 ` KAMEZAWA Hiroyuki
2009-11-06 4:40 ` [PATCH] show per-process swap usage via procfs v2 KAMEZAWA Hiroyuki
2009-11-06 15:19 ` Minchan Kim
2009-11-11 2:25 ` [PATCH] show per-process swap usage via procfs v3 KAMEZAWA Hiroyuki
2009-11-12 15:20 ` Christoph Lameter
2009-11-13 1:51 ` KAMEZAWA Hiroyuki
2009-11-13 2:35 ` KAMEZAWA Hiroyuki
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