From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from max.phys.uu.nl (max.phys.uu.nl [131.211.32.73]) by kvack.org (8.8.7/8.8.7) with ESMTP id PAA19822 for ; Sun, 5 Jul 1998 15:02:38 -0400 Date: Sun, 5 Jul 1998 21:00:18 +0200 (CEST) From: Rik van Riel Reply-To: Rik van Riel Subject: current VM performance Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Linux MM Cc: Linux Kernel List-ID: Hi, While considering future VM improvements, I decided to do some tests with the current VM subsystem. I started with a 512x512 image (background of www.zip.com.au) in GIMP. The first thing I did was increasing the image size to 5120x5120, now I am 120M in swap on my 24M machine :-) The resizing goes reasonably fast, a good indication that swapOUT I/O clustering works. Zooming out to 16:0 (so that I could view the entire image in one time) was hell though. That was to be expected since we don't do swapIN clustering yet... Now the system is running the 'NL' enhancement filter, it's happily churning away at 100 swapins a second, 50 swapouts and 'some' filesystem activity... Gimp and the filter both get around 25% CPU and x11amp doesn't skip a beat :-) This looks quite acceptable to me, and together with swapin readahead (yup, it's on it's way) even my 24M system should rock again... Rik. +-------------------------------------------------------------------+ | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | +-------------------------------------------------------------------+ -- This is a majordomo managed list. To unsubscribe, send a message with the body 'unsubscribe linux-mm me@address' to: majordomo@kvack.org