Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 16 Apr 2002 14:02:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 16 Apr 2002 14:02:51 -0400 Received: from x35.xmailserver.org ([208.129.208.51]:31383 "EHLO x35.xmailserver.org") by vger.kernel.org with ESMTP id ; Tue, 16 Apr 2002 14:02:47 -0400 X-AuthUser: davidel@xmailserver.org Date: Tue, 16 Apr 2002 11:10:09 -0700 (PDT) From: Davide Libenzi X-X-Sender: davide@blue1.dev.mcafeelabs.com To: davidm@hpl.hp.com cc: Linus Torvalds , Linux Kernel Mailing List Subject: Re: Why HZ on i386 is 100 ? In-Reply-To: <15548.25819.487824.338429@napali.hpl.hp.com> 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 On Tue, 16 Apr 2002, David Mosberger wrote: > >>>>> On Tue, 16 Apr 2002 10:18:18 -0700 (PDT), Davide Libenzi said: > > Davide> i still have pieces of paper on my desk about tests done on > Davide> my dual piii where by hacking HZ to 1000 the kernel build > Davide> time went from an average of 2min:30sec to an average > Davide> 2min:43sec. that is pretty close to 10% > > Did you keep the timeslice roughly constant? it was 2.5.1 time and it was still ruled by TICK_SCALE that made the timeslice to drop from 60ms ( 100HZ ) to 21ms ( 1000HZ ). - Davide - 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/