From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261170AbUBVGPf (ORCPT ); Sun, 22 Feb 2004 01:15:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261171AbUBVGPf (ORCPT ); Sun, 22 Feb 2004 01:15:35 -0500 Received: from fw.osdl.org ([65.172.181.6]:52190 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261170AbUBVGPe (ORCPT ); Sun, 22 Feb 2004 01:15:34 -0500 Date: Sat, 21 Feb 2004 22:15:53 -0800 From: Andrew Morton To: Linus Torvalds Cc: cw@f00f.org, mfedyk@matchmail.com, linux-kernel@vger.kernel.org Subject: Re: Large slab cache in 2.6.1 Message-Id: <20040221221553.01b1b71c.akpm@osdl.org> In-Reply-To: References: <4037FCDA.4060501@matchmail.com> <20040222023638.GA13840@dingdong.cryptoapps.com> <20040222031113.GB13840@dingdong.cryptoapps.com> X-Mailer: Sylpheed version 0.9.4 (GTK+ 1.2.10; i686-pc-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 Linus Torvalds wrote: > > What happened to the experiment of having slab pages on the (in)active > lists and letting them be free'd that way? Didn't somebody already do > that? Ed Tomlinson and Craig Kulesa? That was Ed. Because we cannot reclaim slab pages direct from the LRU it turned out that putting slab pages onto the LRU was merely an extremely complicated way of making the VFS cache scanning rate porportional to the pagecache scanning rate. So we ended up doing just that, without putting the slab pages on the LRU.