Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 18 Nov 2001 19:23:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 18 Nov 2001 19:23:24 -0500 Received: from penguin.e-mind.com ([195.223.140.120]:16228 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Sun, 18 Nov 2001 19:23:05 -0500 Date: Mon, 19 Nov 2001 01:23:12 +0100 From: Andrea Arcangeli To: rwhron@earthlink.net Cc: linux-kernel@vger.kernel.org, ltp-list@lists.sourceforge.net Subject: Re: VM tests on 2.4.15-pre6 and 2.4.15pre6aa1 Message-ID: <20011119012312.B1331@athlon.random> In-Reply-To: <20011118095720.A324@earthlink.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.12i In-Reply-To: <20011118095720.A324@earthlink.net>; from rwhron@earthlink.net on Sun, Nov 18, 2001 at 09:57:20AM -0500 X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Nov 18, 2001 at 09:57:20AM -0500, rwhron@earthlink.net wrote: > Hope this information is useful! yes it's useful. It seems normal, as said this kernel isn't going to swap very easily, it tends to shrink the cache too much, and I only cared to fix the >=3G boxes with no swap at all but with lots of cache where I wanted to be sure the anon pages into the lru weren't going to make the system sluggish (google setup incidentally). I increased significantly the vm_mapped_ratio default setting to be sure no to have swap_out in our way during the testing (of course, increasing vm_mapped_ratio doesn't mean the swap_out doesn't work, but only makes harder to the machine to run into swap, it tends to shrink the cache more). So if you've time to test, I'd like to know what you get also after a: echo 9 >/proc/sys/vm/vm_mapped_ratio and also after backing out those two patches in order: ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.15pre6aa1/10_vm-14-no-anonlru-1-simple-cache-1 ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.15pre6aa1/10_vm-14-no-anonlru-1 and again using "echo 9 >/proc/sys/vm/vm_mapped_ratio" after backing out the two patches. thanks for the feedback, Andrea - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/