From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262176AbTKDMwl (ORCPT ); Tue, 4 Nov 2003 07:52:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262225AbTKDMwl (ORCPT ); Tue, 4 Nov 2003 07:52:41 -0500 Received: from artax.karlin.mff.cuni.cz ([195.113.31.125]:15841 "EHLO artax.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S262176AbTKDMwk (ORCPT ); Tue, 4 Nov 2003 07:52:40 -0500 Date: Tue, 4 Nov 2003 13:52:38 +0100 From: Tomas Telensky To: "Ihar 'Philips' Filipau" Cc: Linux Kernel Mailing List Subject: Re: [2.4] Are jiffies in jiffies? Message-ID: <20031104125238.GC18625@artax.karlin.mff.cuni.cz> References: <3FA79D3A.8090308@softhome.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3FA79D3A.8090308@softhome.net> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Hello! > > [ I beleive this is real FAQ - so responding with private e-mails > more appropriate. > ptr("RTFM") != 0 are welcome. ] > > jiffies declared in kernel/timer.c. > Name suggests that it is incremented 100 times per second. > LDD2 suggests that it is incremented every 1000/HZ per second. > > Is it just name misleading - or I really miss the point? > > So to translate this to seconds i need (jiffies*1000/HZ) > and milliseconds are just (jiffies/HZ) then. No. seconds are jiffies/HZ. HZ = Herz = something per second :-) HZ = something / second => second = something / HZ :-) Tomas