linux-kernel - Re: la la la la ... swappiness

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Message-ID: <45751955.8010506@yahoo.com.au>
Date:	Tue, 05 Dec 2006 18:01:41 +1100
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Aucoin@...ston.RR.com
CC:	'Linus Torvalds' <torvalds@...l.org>,
	'Tim Schmielau' <tim@...sik3.uni-rostock.de>,
	'Andrew Morton' <akpm@...l.org>, linux-kernel@...r.kernel.org,
	clameter@....com
Subject: Re: la la la la ... swappiness

Aucoin wrote:
>>From: Linus Torvalds [mailto:torvalds@...l.org]
>>I actually suspect you should be _fairly_ close to such a situation
> 
> 
> We run with min_free_kbytes set around 4k to answer your earlier question.
> 
> 
>>Louis, exactly how do you allocate that big 1.6GB shared area?
> 
> 
> Ummm, shm_open, ftruncate, mmap ? Is it a trick question ? The process
> responsible for initially setting up the shared area doesn't stay resident.

The issue is that the shm pages should show up in the active and
inactive lists. But they aren't, and you seem to have about 1542524K
unacconted for. Weird.

Can you try getting the output of /proc/vmstat as well?

-- 
SUSE Labs, Novell Inc.
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