From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 25 Jun 2001 14:57:39 -0300 (BRST) From: Rik van Riel Subject: Re: VM tuning through fault trace gathering [with actual code] In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: John Fremlin Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On 25 Jun 2001, John Fremlin wrote: > Last year I had the idea of tracing the memory accesses of the system > to improve the VM - the traces could be used to test algorithms in > userspace. The difficulty is of course making all memory accesses > fault without destroying system performance. Sounds like a cool idea. One thing you should keep in mind though is to gather traces of the WHOLE SYSTEM and not of individual applications. There has to be a way to balance the eviction of pages from applications against those of other applications. regards, Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose... http://www.surriel.com/ http://distro.conectiva.com/ Send all your spam to aardvark@nl.linux.org (spam digging piggy) -- 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/