Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 23 Sep 2002 09:22:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 23 Sep 2002 09:22:57 -0400 Received: from mx2.elte.hu ([157.181.151.9]:2999 "HELO mx2.elte.hu") by vger.kernel.org with SMTP id ; Mon, 23 Sep 2002 09:22:30 -0400 Date: Mon, 23 Sep 2002 15:35:25 +0200 (CEST) From: Ingo Molnar Reply-To: Ingo Molnar To: "Richard B. Johnson" Cc: Erik Andersen , Con Kolivas , Subject: Re: [BENCHMARK] Corrected gcc3.2 v gcc2.95.3 contest results In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 738 Lines: 20 On Mon, 23 Sep 2002, Richard B. Johnson wrote: > > It would sure be nice for this sortof test if there were > > some sort of a "flush-all-caches" syscall... > > I think all you need to do is reload the code-segment register > and you end up flushing caches in ix86. i'm pretty sure what was meant was the flushing of the pagecache mainly. The state of CPU caches does not really play in these several-minutes benchmarks, they are at most a few millisecs worth of CPU time to build. Ingo - 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/