Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932383AbVKRT7W (ORCPT ); Fri, 18 Nov 2005 14:59:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932401AbVKRT7W (ORCPT ); Fri, 18 Nov 2005 14:59:22 -0500 Received: from web34109.mail.mud.yahoo.com ([66.163.178.107]:14936 "HELO web34109.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S932383AbVKRT7V (ORCPT ); Fri, 18 Nov 2005 14:59:21 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=B1vEKSx/wejKzWPAGGhgQdSkU7Z+M6NYFmCleq3eDtQB3XG3i+6LSGfPkjz8JPn94pZNlr7vNij0EcbDloKOWgKTX8MqLSfvC9HIaaVph7VNCjr92OAwHonebmy+ocFGNZXhcBRPuzfniCO8I9aVLNZtKEDbIA5GOMIFq2pS8hw= ; Message-ID: <20051118195921.20264.qmail@web34109.mail.mud.yahoo.com> Date: Fri, 18 Nov 2005 11:59:20 -0800 (PST) From: Kenny Simpson Subject: Re: mmap over nfs leads to excessive system load To: Trond Myklebust , Charles Lever Cc: Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <1132182378.8811.93.camel@lade.trondhjem.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 667 Lines: 22 Yet another data point: Under 2.6.8-2 (debain sarge kernel), the test does not cause a spin. Instead, the file extension via pwrite does not allow the new pages to be usable by remap_file_pages. However, munmap/mmap are happy to use pages intoduces by the pwrite... and happily writes more than 4GB. -Kenny __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com - 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/