From: Rik van Riel <riel@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: MinChan Kim <minchan.kim@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kosaki.motohiro@jp.fujitsu.com, hannes@cmpxchg.org
Subject: Re: [PATCH] mmtom: Prevent shrinking of active anon lru list in case of no swap space V3
Date: Thu, 14 May 2009 13:26:12 -0400 [thread overview]
Message-ID: <4A0C5434.3040905@redhat.com> (raw)
In-Reply-To: <20090514093050.43472421.akpm@linux-foundation.org>
Andrew Morton wrote:
> On Thu, 14 May 2009 23:15:55 +0900
> MinChan Kim <minchan.kim@gmail.com> wrote:
>
>> Now shrink_zone can deactivate active anon pages even if we don't have a swap device.
>> Many embedded products don't have a swap device. So the deactivation of anon pages is unnecessary.
>
> Does shrink_list() need to scan the anon LRUs at all if there's no swap
> online?
It doesn't. Get_scan_ratio() will return 0 as the
anon percentage if no swap is online.
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next prev parent reply other threads:[~2009-05-14 17:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-14 14:15 MinChan Kim
2009-05-14 14:27 ` KOSAKI Motohiro
2009-05-14 14:39 ` Minchan Kim
2009-05-14 14:54 ` KOSAKI Motohiro
2009-05-14 16:22 ` Johannes Weiner
2009-05-15 1:28 ` Minchan Kim
2009-05-14 15:25 ` Rik van Riel
2009-05-14 16:30 ` Andrew Morton
2009-05-14 17:26 ` Rik van Riel [this message]
2009-05-18 2:34 ` Wu Fengguang
2009-05-18 2:40 ` Minchan Kim
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