Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753514AbZGTSgI (ORCPT ); Mon, 20 Jul 2009 14:36:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752840AbZGTSgH (ORCPT ); Mon, 20 Jul 2009 14:36:07 -0400 Received: from mx2.redhat.com ([66.187.237.31]:43057 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751219AbZGTSgG (ORCPT ); Mon, 20 Jul 2009 14:36:06 -0400 Message-ID: <4A64B90E.2090509@redhat.com> Date: Mon, 20 Jul 2009 14:35:58 -0400 From: Rik van Riel Organization: Red Hat, Inc User-Agent: Thunderbird 2.0.0.17 (X11/20080915) MIME-Version: 1.0 To: Izik Eidus CC: akpm@linux-foundation.org, hugh.dickins@tiscali.co.uk, aarcange@redhat.com, chrisw@redhat.com, avi@redhat.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, nickpiggin@yahoo.com.au Subject: Re: [PATCH 07/10] ksm: Kernel SamePage Merging References: <1247851850-4298-1-git-send-email-ieidus@redhat.com> <1247851850-4298-2-git-send-email-ieidus@redhat.com> <1247851850-4298-3-git-send-email-ieidus@redhat.com> <1247851850-4298-4-git-send-email-ieidus@redhat.com> <1247851850-4298-5-git-send-email-ieidus@redhat.com> <1247851850-4298-6-git-send-email-ieidus@redhat.com> <1247851850-4298-7-git-send-email-ieidus@redhat.com> <1247851850-4298-8-git-send-email-ieidus@redhat.com> In-Reply-To: <1247851850-4298-8-git-send-email-ieidus@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 757 Lines: 20 Izik Eidus wrote: > From: Izik Eidus > > Ksm is code that allows merging of identical pages between one or > more applications, in a way invisible to the applications that use it. > Pages that are merged are marked as read-only, then COWed when any > application tries to change them. > > Whereas fork() allows sharing anonymous pages between parent and child, > ksm can share anonymous pages between unrelated processes. Acked-by: Rik van Riel -- All rights reversed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/