From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 30 Jan 2002 21:25:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 30 Jan 2002 21:25:04 -0500 Received: from penguin.e-mind.com ([195.223.140.120]:17257 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Wed, 30 Jan 2002 21:24:45 -0500 Date: Thu, 31 Jan 2002 03:25:40 +0100 From: Andrea Arcangeli To: Momchil Velikov Cc: linux-kernel@vger.kernel.org, torvalds@transmeta.com Subject: Re: [PATCH] Radix tree page cache Message-ID: <20020131032540.W1309@athlon.random> In-Reply-To: <87sn8ny4af.fsf@fadata.bg> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.12i In-Reply-To: <87sn8ny4af.fsf@fadata.bg>; from velco@fadata.bg on Wed, Jan 30, 2002 at 10:25:44PM +0200 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 Wed, Jan 30, 2002 at 10:25:44PM +0200, Momchil Velikov wrote: > Linus, > > Please, consider for inclusion in 2.5.3 series the following radix > tree page cache patch. Please benchmark on files 10giga large, only do cached I/O (reads are fine) between 9G and 10G offset for example. dbench or others handling not very huge files are not interesting benchmarks for this, for them per-inode rbtree was faster too. the only problem are the very huge files, the hashtable guarantees the same performance on small and huge files. Andrea