From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id 54FF76B004F for ; Thu, 13 Aug 2009 13:31:52 -0400 (EDT) Received: by ywh32 with SMTP id 32so1229266ywh.11 for ; Thu, 13 Aug 2009 10:31:50 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <200908130805.36787.a1426z@gawab.com> References: <200908122007.43522.ngupta@vflare.org> <4A837D5A.3070407@vflare.org> <200908130805.36787.a1426z@gawab.com> Date: Thu, 13 Aug 2009 23:01:49 +0530 Message-ID: Subject: Re: compcache as a pre-swap area (was: [PATCH] swap: send callback when swap slot is freed) From: Nitin Gupta Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: Al Boldi Cc: Hugh Dickins , Matthew Wilcox , Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Thu, Aug 13, 2009 at 10:35 AM, Al Boldi wrote: > 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. =A0If so, then repositioning it as a compressed pre-swap are= a > working together with normal swap-space, if available, may yield a much m= ore > powerful system. > > compcache is really not really a swap replacement. Its just another swap device that compresses data and stores it in memory itself. You can have disk based swaps along with ramzswap (name of block device). Nitin -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org