From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id 4D5826B0078 for ; Mon, 8 Mar 2010 18:23:46 -0500 (EST) Received: from wpaz29.hot.corp.google.com (wpaz29.hot.corp.google.com [172.24.198.93]) by smtp-out.google.com with ESMTP id o28NNehN001252 for ; Mon, 8 Mar 2010 23:23:41 GMT Received: from pvd12 (pvd12.prod.google.com [10.241.209.204]) by wpaz29.hot.corp.google.com with ESMTP id o28NNdnV009901 for ; Mon, 8 Mar 2010 15:23:39 -0800 Received: by pvd12 with SMTP id 12so117360pvd.8 for ; Mon, 08 Mar 2010 15:23:39 -0800 (PST) Date: Mon, 8 Mar 2010 15:23:35 -0800 (PST) From: David Rientjes Subject: Re: [patch] mm: adjust kswapd nice level for high priority page allocators In-Reply-To: <20100301180412.GF3852@csn.ul.ie> Message-ID: References: <20100301135242.GE3852@csn.ul.ie> <20100301180412.GF3852@csn.ul.ie> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Mel Gorman Cc: Andrew Morton , Con Kolivas , linux-mm@kvack.org List-ID: On Mon, 1 Mar 2010, Mel Gorman wrote: > Can figures also be shown then as part of the patch? It would appear that > one possibility would be to boot a machine with 1G and simply measure the > time taken to complete 7 simultaneous kernel compiles (so that kswapd is > active) and measure the number of pages direct reclaimed and reclaimed by > kswapd. Rerun the test except that all the kernel builds are at a higher > priority than kswapd. > Ok, I'll collect those statistics. > When all the priorities are the same, the reclaim figures should match > with or without the patch. With the priorities higher, then the direct > reclaims should be higher without this patch reflecting the fact that > kswapd was starved of CPU. > Agreed. -- 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