From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: Re: [PATCH v2 01/16] FS: Added demand paging markers to filesystem Date: Wed, 9 May 2012 11:27:58 -0400 Message-ID: <20120509152758.GB16341@redhat.com> References: <1336054995-22988-1-git-send-email-svenkatr@ti.com> <1336054995-22988-2-git-send-email-svenkatr@ti.com> <20120506233117.GU5091@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org To: "S, Venkatraman" Cc: Dave Chinner , linux-mmc@vger.kernel.org, cjb@laptop.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, arnd.bergmann@linaro.org, alex.lemberg@sandisk.com, ilan.smith@sandisk.com, lporzio@micron.com, rmk+kernel@arm.linux.org.uk List-Id: linux-mmc@vger.kernel.org On Mon, May 07, 2012 at 10:16:30PM +0530, S, Venkatraman wrote: [..] > This feature doesn't fiddle with the I/O scheduler's ability to balance > read vs write requests or handling requests from various process queues (CFQ). > Does this feature work with CFQ? As CFQ does not submit sync IO (for idling queues) while async IO is pending and vice a versa (cfq_may_dispatch()). Thanks Vivek -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759965Ab2EIP23 (ORCPT ); Wed, 9 May 2012 11:28:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:2896 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759928Ab2EIP22 (ORCPT ); Wed, 9 May 2012 11:28:28 -0400 Date: Wed, 9 May 2012 11:27:58 -0400 From: Vivek Goyal To: "S, Venkatraman" Cc: Dave Chinner , linux-mmc@vger.kernel.org, cjb@laptop.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, arnd.bergmann@linaro.org, alex.lemberg@sandisk.com, ilan.smith@sandisk.com, lporzio@micron.com, rmk+kernel@arm.linux.org.uk Subject: Re: [PATCH v2 01/16] FS: Added demand paging markers to filesystem Message-ID: <20120509152758.GB16341@redhat.com> References: <1336054995-22988-1-git-send-email-svenkatr@ti.com> <1336054995-22988-2-git-send-email-svenkatr@ti.com> <20120506233117.GU5091@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 07, 2012 at 10:16:30PM +0530, S, Venkatraman wrote: [..] > This feature doesn't fiddle with the I/O scheduler's ability to balance > read vs write requests or handling requests from various process queues (CFQ). > Does this feature work with CFQ? As CFQ does not submit sync IO (for idling queues) while async IO is pending and vice a versa (cfq_may_dispatch()). Thanks Vivek