From: Andrew Morton <akpm@osdl.org>
To: Nikita Danilov <nikita@clusterfs.com>
Cc: Linux-Kernel@vger.kernel.org, AKPM@osdl.org, linux-mm@kvack.org
Subject: Re: [PATCH]: 1/4 batch mark_page_accessed()
Date: Sun, 21 Nov 2004 13:12:50 -0800 [thread overview]
Message-ID: <20041121131250.26d2724d.akpm@osdl.org> (raw)
In-Reply-To: <16800.47044.75874.56255@gargle.gargle.HOWL>
Nikita Danilov <nikita@clusterfs.com> wrote:
>
> Batch mark_page_accessed() (a la lru_cache_add() and lru_cache_add_active()):
> page to be marked accessed is placed into per-cpu pagevec
> (page_accessed_pvec). When pagevec is filled up, all pages are processed in a
> batch.
>
> This is supposed to decrease contention on zone->lru_lock.
Looks sane, althought it does add more atomic ops (the extra
get_page/put_page). Some benchmarks would be nice to have.
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next prev parent reply other threads:[~2004-11-21 21:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-21 15:44 [PATCH]: 1/4 batch mark_page_accessed() Nikita Danilov
2004-11-21 21:12 ` Andrew Morton [this message]
2004-11-24 10:40 ` Marcelo Tosatti
2004-11-24 16:32 ` Marcelo Tosatti
2004-11-24 21:53 ` Nikita Danilov
2004-11-26 18:58 ` Marcelo Tosatti
2004-11-27 0:37 ` Nick Piggin
2004-11-30 16:29 ` Marcelo Tosatti
2004-12-01 1:33 ` Andrew Morton
2004-11-30 22:57 ` Marcelo Tosatti
2004-12-01 12:23 ` Nikita Danilov
2004-12-01 18:58 ` Marcelo Tosatti
2004-12-02 1:59 ` Andrew Morton
2004-11-27 10:41 ` Nikita Danilov
2004-11-27 8:19 ` Marcelo Tosatti
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