Message-ID: <40904FAE.10709@yahoo.com.au>
Date: Thu, 29 Apr 2004 10:43:26 +1000
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: Jeff Garzik <jgarzik@pobox.com>
CC: brettspamacct@fastclick.com,
       linux-kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: ~500 megs cached yet 2.6.5 goes into swap hell
References: <409021D3.4060305@fastclick.com> <4090467E.4070709@fastclick.com> <409048B7.1000103@pobox.com>
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Jeff Garzik wrote:
> Brett E. wrote:
> 
>> exits, freeing up the malloc'ed memory. This brings free memory up by 
>> 400 megs and brings the cache down to close to 0, of course the cache 
> 
> 
> Yeah, I have something similar (attached).  Run it like
> 
>     fillmem <number-of-megabytes>
> 
> 
>> grows right afterwards. It would be nice to cap the cache 
>> datastructures in the kernel but I've been posting about this since 
>> September to no avail so my expectations are pretty low.
> 
> 
> This is a frequent request...  although I disagree with a hard cap on 
> the cache, I think the request (and similar ones) should hopefully 
> indicate to the VM gurus that the kernel likes cache better than anon 
> VMAs that must be swapped out.
> 

For 2.6.6-rc2-mm2:
http://www.kerneltrap.org/~npiggin/vm-rollup.patch.gz

/proc/sys/vm/mapped_page_cost - indicate which *you* like better ;)
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