From: Rik van Riel <riel@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan.kim@gmail.com>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Venkatesh Pallipadi <venki@google.com>,
Ying Han <yinghan@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH] vmscan: prevent background aging of anon page in no swap system
Date: Fri, 03 Sep 2010 17:23:44 -0400 [thread overview]
Message-ID: <4C816760.4010807@redhat.com> (raw)
In-Reply-To: <20100903140649.09dee316.akpm@linux-foundation.org>
On 09/03/2010 05:06 PM, Andrew Morton wrote:
> We don't have any quantitative data on the effect of these excess tlb
> flushes, which makes it difficult to decide which kernel versions
> should receive this patch.
>
> Help?
I assume it is a relatively small performance optimization,
as well as a nice code cleanup ... so probably no real hurry
to get it upstream (next time you send Linus mm patches?),
and no real reason to have it backported to a -stable kernel
either.
--
All rights reversed
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan.kim@gmail.com>,
linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Venkatesh Pallipadi <venki@google.com>,
Ying Han <yinghan@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH] vmscan: prevent background aging of anon page in no swap system
Date: Fri, 03 Sep 2010 17:23:44 -0400 [thread overview]
Message-ID: <4C816760.4010807@redhat.com> (raw)
In-Reply-To: <20100903140649.09dee316.akpm@linux-foundation.org>
On 09/03/2010 05:06 PM, Andrew Morton wrote:
> We don't have any quantitative data on the effect of these excess tlb
> flushes, which makes it difficult to decide which kernel versions
> should receive this patch.
>
> Help?
I assume it is a relatively small performance optimization,
as well as a nice code cleanup ... so probably no real hurry
to get it upstream (next time you send Linus mm patches?),
and no real reason to have it backported to a -stable kernel
either.
--
All rights reversed
--
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next prev parent reply other threads:[~2010-09-03 21:24 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-29 15:43 [PATCH] vmscan: prevent background aging of anon page in no swap system Minchan Kim
2010-08-29 15:43 ` Minchan Kim
2010-08-29 15:49 ` Rik van Riel
2010-08-29 15:49 ` Rik van Riel
2010-08-29 17:45 ` Ying Han
2010-08-29 17:45 ` Ying Han
2010-08-29 20:03 ` Rik van Riel
2010-08-29 20:03 ` Rik van Riel
2010-08-29 20:56 ` Ying Han
2010-08-29 21:23 ` Ying Han
2010-08-29 21:23 ` Ying Han
2010-08-29 22:26 ` Rik van Riel
2010-08-29 22:26 ` Rik van Riel
2010-08-30 0:18 ` Minchan Kim
2010-08-30 0:18 ` Minchan Kim
2010-08-30 5:40 ` Ying Han
2010-08-30 5:40 ` Ying Han
2010-08-30 6:16 ` Minchan Kim
2010-08-30 6:16 ` Minchan Kim
2010-08-31 0:56 ` KOSAKI Motohiro
2010-08-31 0:56 ` KOSAKI Motohiro
2010-08-31 1:10 ` Minchan Kim
2010-08-31 1:10 ` Minchan Kim
2010-08-31 1:18 ` KOSAKI Motohiro
2010-08-31 1:18 ` KOSAKI Motohiro
2010-08-31 1:36 ` Minchan Kim
2010-08-31 1:36 ` Minchan Kim
2010-08-31 1:41 ` KOSAKI Motohiro
2010-08-31 1:41 ` KOSAKI Motohiro
2010-08-31 0:56 ` KOSAKI Motohiro
2010-08-31 0:56 ` KOSAKI Motohiro
2010-08-31 1:23 ` Minchan Kim
2010-08-31 1:23 ` Minchan Kim
2010-08-31 1:38 ` KOSAKI Motohiro
2010-08-31 1:38 ` KOSAKI Motohiro
2010-08-31 2:02 ` Minchan Kim
2010-08-31 2:02 ` Minchan Kim
2010-08-31 2:09 ` KOSAKI Motohiro
2010-08-31 2:09 ` KOSAKI Motohiro
2010-08-31 3:47 ` Minchan Kim
2010-08-31 3:47 ` Minchan Kim
2010-08-31 2:30 ` Rik van Riel
2010-08-31 2:30 ` Rik van Riel
2010-08-31 3:46 ` Minchan Kim
2010-08-31 3:46 ` Minchan Kim
2010-09-03 21:06 ` Andrew Morton
2010-09-03 21:06 ` Andrew Morton
2010-09-03 21:23 ` Rik van Riel [this message]
2010-09-03 21:23 ` Rik van Riel
2010-09-03 21:45 ` Ying Han
2010-09-03 21:47 ` Ying Han
2010-09-03 21:47 ` Ying Han
2010-09-03 21:56 ` Andrew Morton
2010-09-03 21:56 ` Andrew Morton
2010-09-04 1:12 ` Venkatesh Pallipadi
2010-09-04 1:12 ` Venkatesh Pallipadi
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