Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 16 Apr 2002 20:57:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 16 Apr 2002 20:57:34 -0400 Received: from zero.tech9.net ([209.61.188.187]:57098 "EHLO zero.tech9.net") by vger.kernel.org with ESMTP id ; Tue, 16 Apr 2002 20:57:20 -0400 Subject: Re: Why HZ on i386 is 100 ? From: Robert Love To: davidm@hpl.hp.com Cc: Davide Libenzi , Linus Torvalds , linux-kernel@vger.kernel.org In-Reply-To: <15548.50859.169392.857907@napali.hpl.hp.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 Date: 16 Apr 2002 20:57:09 -0400 Message-Id: <1019005044.1670.16.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2002-04-16 at 20:49, David Mosberger wrote: > But since it's popular, I did measure it quickly on a relatively > slow (old) Itanium box: with 100Hz, the kernel compile was about > 0.6% faster than with 1024Hz (2.4.18 UP kernel). One question I have always had is why 1024 and not 1000 ? Because that is what Alpha does? It seems to me there is no reason for a power-of-two timer value, and using 1024 vs 1000 just makes the math and rounding more difficult. Robert Love - 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/