Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264111AbUDRDx7 (ORCPT ); Sat, 17 Apr 2004 23:53:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264112AbUDRDx7 (ORCPT ); Sat, 17 Apr 2004 23:53:59 -0400 Received: from fw.osdl.org ([65.172.181.6]:35781 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S264111AbUDRDx6 (ORCPT ); Sat, 17 Apr 2004 23:53:58 -0400 Date: Sat, 17 Apr 2004 20:53:38 -0700 From: Andrew Morton To: William Lee Irwin III Cc: elf@buici.com, linux-kernel@vger.kernel.org Subject: Re: vmscan.c heuristic adjustment for smaller systems Message-Id: <20040417205338.71bed81b.akpm@osdl.org> In-Reply-To: <20040418015918.GU743@holomorphy.com> References: <20040417193855.GP743@holomorphy.com> <20040417212958.GA8722@flea> <20040417162125.3296430a.akpm@osdl.org> <20040417233037.GA15576@flea> <20040417165151.24b1fed5.akpm@osdl.org> <20040418015918.GU743@holomorphy.com> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 894 Lines: 18 William Lee Irwin III wrote: > > On Sat, Apr 17, 2004 at 04:51:51PM -0700, Andrew Morton wrote: > > I'd assume that setting swappiness to zero simply means that you still have > > all of your libc in pagecache when running ls. > > What happens if you do the big file copy, then run `sync', then do the ls? > > Have you experimented with the NFS mount options? v2? UDP? > > I wonder if the ptep_test_and_clear_young() TLB flushing is related. That, or page_referenced() always returns true on this ARM implementation or some such silliness. Everything here points at the VM being unable to reclaim that clean pagecache. - 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/