From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hugh@veritas.com>,
Sudhir Kumar <skumar@linux.vnet.ibm.com>,
YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
Paul Menage <menage@google.com>,
lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
taka@valinux.co.jp, linux-mm@kvack.org,
David Rientjes <rientjes@google.com>,
Pavel Emelianov <xemul@openvz.org>
Subject: Re: [-mm] Make the memory controller more desktop responsive
Date: Thu, 3 Apr 2008 18:43:51 +0900 [thread overview]
Message-ID: <20080403184351.42de4f56.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20080403093253.8944.10168.sendpatchset@localhost.localdomain>
On Thu, 03 Apr 2008 15:02:53 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
> This patch makes the memory controller more responsive on my desktop.
>
> Here is what the patch does
>
> 1. Reduces the number of retries to 2. We had 5 earlier, since we
> were controlling swap cache as well. We pushed data from mappings
> to swap cache and we needed additional passes to clear out the cache.
Hmm, what this change improves ?
I don't want to see OOM.
> 2. It sets all cached pages as inactive. We were by default marking
> all pages as active, thus forcing us to go through two passes for
> reclaiming pages
Agreed.
> 3. Removes congestion_wait(), since we already have that logic in
> do_try_to_free_pages()
>
Agreed.
Thanks,
-Kame
next prev parent reply other threads:[~2008-04-03 9:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-03 9:32 Balbir Singh
2008-04-03 9:43 ` KAMEZAWA Hiroyuki [this message]
2008-04-03 9:44 ` Balbir Singh
2008-04-03 9:55 ` KAMEZAWA Hiroyuki
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