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Date: Sun, 8 Dec 2002 12:49:00 -0200 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: Anton Blanchard <anton@samba.org>
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Subject: Re: 2.5.50-BK + 24 CPUs
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On Mon, 9 Dec 2002, Anton Blanchard wrote:

> profile:
>  66260 total
>  54227 cpu_idle
>   1000 page_remove_rmap
>    909 __get_page_state
>    830 page_add_rmap

Looks like the bitflag locking in rmap is hurting you.
How does it work with a real spinlock in the struct page
instead of using a bit in page->flags ?

regards,

Rik
-- 
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