Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752751Ab0K3OLH (ORCPT ); Tue, 30 Nov 2010 09:11:07 -0500 Received: from mail-qy0-f181.google.com ([209.85.216.181]:60865 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751289Ab0K3OLF (ORCPT ); Tue, 30 Nov 2010 09:11:05 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:in-reply-to:references:user-agent:date :message-id:mime-version:content-type; b=m35XfC7ZKP0EUTVkf5V/9oxXRzVb05pn31rO0qA0VTyAfkBIDDkjZa96tP3fai6+gd WK4jvcoPu2n3dX7sRYB1AimTn+4ZU/SA39WXHv4Y8r6JJvCQUaf/wRfMeQK8EakjKsbx 6hbrkSAXSiM3nAB0ig34bUInKVWI8EsosPX2o= From: Ben Gamari To: Mel Gorman , KOSAKI Motohiro Cc: Minchan Kim , Andrew Morton , linux-mm , LKML , Wu Fengguang , Johannes Weiner , Nick Piggin Subject: Re: [PATCH 2/3] Reclaim invalidated page ASAP In-Reply-To: <20101130091822.GJ13268@csn.ul.ie> References: <053e6a3308160a8992af5a47fb4163796d033b08.1291043274.git.minchan.kim@gmail.com> <20101130100933.82E9.A69D9226@jp.fujitsu.com> <20101130091822.GJ13268@csn.ul.ie> User-Agent: Notmuch/0.5-3-g22aadfc (http://notmuchmail.org) Emacs/23.1.1 (x86_64-pc-linux-gnu) Date: Tue, 30 Nov 2010 09:11:01 -0500 Message-ID: <87zksqeway.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1149 Lines: 26 On Tue, 30 Nov 2010 09:18:22 +0000, Mel Gorman wrote: > I would agree except as said elsewhere, it's a chicken and egg problem. > We don't have a real world test because fadvise is not useful in its > current iteration. I'm hoping that there will be a test comparing > > rsync on vanilla kernel > rsync on patched kernel > rsync+patch on vanilla kernel > rsync+patch on patched kernel > > Are the results of such a test likely to happen? > Yes, absolutely, although I'm sorry it has taken so long. Between thanksgiving and the impending end of the semester things have been a bit hectic. Nevertheless, I just finished putting together a script to record some metics from /proc/vmstat and /proc/[pid]/statm, so at this point I'm ready to finally take some data. Any suggestions for particular patterns to look for in the numbers or other metrics to record are welcome. Cheers, - Ben -- 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/