linux-kernel - compcache as a pre-swap area (was: [PATCH] swap: send callback when swap slot is freed)

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Date:	Thu, 13 Aug 2009 08:05:36 +0300
From:	Al Boldi <a1426z@...ab.com>
To:	ngupta@...are.org, Hugh Dickins <hugh.dickins@...cali.co.uk>
Cc:	Matthew Wilcox <willy@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: compcache as a pre-swap area (was: [PATCH] swap: send callback when swap slot is freed)

Nitin Gupta wrote:
> BTW, last time compcache was not accepted due to lack of performance
> numbers. Now the project has lot more data for various cases:
> http://code.google.com/p/compcache/wiki/Performance
> Still need to collect data for worst-case behaviors and such...

I checked the link, and it looks like you are positioning compcache as a swap 
replacement.  If so, then repositioning it as a compressed pre-swap area 
working together with normal swap-space, if available, may yield a much more 
powerful system.


Thanks!

--
Al

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