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, 26 Sep 2001 13:43:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 26 Sep 2001 13:43:31 -0400 Received: from vindaloo.ras.ucalgary.ca ([136.159.55.21]:29408 "EHLO vindaloo.ras.ucalgary.ca") by vger.kernel.org with ESMTP id ; Wed, 26 Sep 2001 13:43:17 -0400 Date: Wed, 26 Sep 2001 11:43:25 -0600 Message-Id: <200109261743.f8QHhPU08423@vindaloo.ras.ucalgary.ca> From: Richard Gooch To: Linus Torvalds Cc: Alan Cox , "David S. Miller" , , , , Subject: Re: Locking comment on shrink_caches() In-Reply-To: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Linus Torvalds writes: > This message is in MIME format. The first part should be readable text, > while the remaining parts are likely unreadable without MIME-aware tools. > Send mail to mime@docserver.cac.washington.edu for more info. Yuk! MIME! I thought you hated it too? > PIII: > nothing: 32 cycles > locked add: 50 cycles > cpuid: 170 cycles > > P4: > nothing: 80 cycles > locked add: 184 cycles > cpuid: 652 cycles > > Remember: these are for the already-exclusive-cache cases. ] > > What are the athlon numbers? Athalon 850 MHz: nothing: 11 cycles locked add: 12 cycles cpuid: 64 cycles BTW: your code had horrible control-M's on each line. So the compiler choked (with a less-than-helpful error message). Of course, cat t.c showed nothing amiss. Fortunately emacs doesn't hide information. Regards, Richard.... Permanent: rgooch@atnf.csiro.au Current: rgooch@ras.ucalgary.ca