From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ed Tomlinson Reply-To: tomlins@cam.org Subject: Re: [PATCH] page aging for 2.2.16 Date: Sun, 9 Jul 2000 11:30:45 -0400 Content-Type: text/plain References: <20000608031635.A353@acs.ucalgary.ca> In-Reply-To: <20000608031635.A353@acs.ucalgary.ca> MIME-Version: 1.0 Message-Id: <00070911402500.02208@oscar> Content-Transfer-Encoding: 8BIT Sender: owner-linux-mm@kvack.org Return-Path: To: Neil Schemenauer Cc: linux-mm@kvack.org List-ID: On Thu, 08 Jun 2000, Neil Schemenauer wrote: > This patch seems to significantly improve the interactive > performance of 2.2.16. Without the patch XMMS and the mouse > pointer will stop responding for seconds at a time while running > Bonnie. With the patch everything is smooth. > > I timed a kernel compile with -j 20 to test the cost of the > aging. It does not seem to make a significant difference (3 > seconds slower). Bonnie reports slightly higher IO figures > with the patch. I don't think the change is significant. I have been running with with 2.2.17pre5 + this patch for the last 12 days with very good results. The reiserfs guys fixed a block leak under high load and released 3.5.23. I want to rebuild my kernel. I was thinking of 2.2.17pre10 + Marcelo Tosatti's merged patch which includes - balance dirty patch which wakes up kflushd at "correct" times. (Andrea) - GFP-race-fix-2.patch, fixes the free_before_allocate issue without hurting other cases. (Andrea) - wait-dirty.patch, to avoid processes from waiting at dirty buffers while there is freeable cache around. (me) - WRITEA patch, fixes the interactiveness problem under high IO. (me) along with the page aging stuff. Is there a better combo? Ed Tomlinson http://www.cam.org/~tomlins/njpipes.html -- 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.eu.org/Linux-MM/