From: Rik van Riel <riel@redhat.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Ying Han <yinghan@google.com>
Subject: Re: [PATCH v2 2/2] Filter unevictable page out in deactivate_page
Date: Tue, 03 May 2011 10:50:18 -0400 [thread overview]
Message-ID: <4DC0162A.8020505@redhat.com> (raw)
In-Reply-To: <60486ca121ee8f526a0046f47384579e465bb59e.1304433952.git.minchan.kim@gmail.com>
On 05/03/2011 10:48 AM, Minchan Kim wrote:
> It's pointless that deactive_page's pagevec operation about
> unevictable page as it's nop.
> This patch removes unnecessary overhead which might be a bit problem
> in case that there are many unevictable page in system(ex, mprotect workload)
>
> Reviewed-by: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
> Signed-off-by: Minchan Kim<minchan.kim@gmail.com>
Reviewed-by: Rik van Riel<riel@redhat.com>
--
All rights reversed
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Ying Han <yinghan@google.com>
Subject: Re: [PATCH v2 2/2] Filter unevictable page out in deactivate_page
Date: Tue, 03 May 2011 10:50:18 -0400 [thread overview]
Message-ID: <4DC0162A.8020505@redhat.com> (raw)
In-Reply-To: <60486ca121ee8f526a0046f47384579e465bb59e.1304433952.git.minchan.kim@gmail.com>
On 05/03/2011 10:48 AM, Minchan Kim wrote:
> It's pointless that deactive_page's pagevec operation about
> unevictable page as it's nop.
> This patch removes unnecessary overhead which might be a bit problem
> in case that there are many unevictable page in system(ex, mprotect workload)
>
> Reviewed-by: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
> Signed-off-by: Minchan Kim<minchan.kim@gmail.com>
Reviewed-by: Rik van Riel<riel@redhat.com>
--
All rights reversed
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next prev parent reply other threads:[~2011-05-03 14:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-03 14:48 [PATCH v2 0/2] Fix and Enhance deactive_page Minchan Kim
2011-05-03 14:48 ` Minchan Kim
2011-05-03 14:48 ` [PATCH v2 1/2] Check PageUnevictable in lru_deactivate_fn Minchan Kim
2011-05-03 14:48 ` Minchan Kim
2011-05-03 14:48 ` [PATCH v2 2/2] Filter unevictable page out in deactivate_page Minchan Kim
2011-05-03 14:48 ` Minchan Kim
2011-05-03 14:50 ` Rik van Riel [this message]
2011-05-03 14:50 ` Rik van Riel
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