From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 6 Nov 2004 13:31:06 -0800 From: William Lee Irwin III Subject: Re: removing mm->rss and mm->anon_rss from kernel? Message-ID: <20041106213106.GH2890@holomorphy.com> References: <16781.12572.181444.967905@wombat.chubb.wattle.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: Peter Chubb , Christoph Lameter , Nick Piggin , Benjamin Herrenschmidt , Hugh Dickins , linux-mm@kvack.org, linux-ia64@kernel.vger.org List-ID: On Sun, 7 Nov 2004, Peter Chubb wrote: >> Is this going to scale properly to large machines, which usually have >> large numbers of active processes? top is already >> almost unuseably slow on such machines; if all the pagetables have to >> be scanned to get RSS, it'll probably slow to a halt. On Sat, Nov 06, 2004 at 03:54:17PM -0500, Rik van Riel wrote: > Not probably. Certainly. > Christopher would do well to actually use his patch, while > running eg. an Oracle benchmark and using top to monitor > system activity. OAST with a few thousand clients should do it. I think it tops out around 5000 or 1000 without benchmark source adjustments. The database itself, of course, has no trouble with many clients, the workload simulator was merely not intended for so many. -- wli -- 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: aart@kvack.org