From owner-freebsd-stable@FreeBSD.ORG Tue Feb 22 08:43:36 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E472C16A4CE for ; Tue, 22 Feb 2005 08:43:36 +0000 (GMT) Received: from cyrus.watson.org (cyrus.watson.org [204.156.12.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id B724043D46 for ; Tue, 22 Feb 2005 08:43:36 +0000 (GMT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by cyrus.watson.org (Postfix) with SMTP id 0055C46B0C; Tue, 22 Feb 2005 03:43:36 -0500 (EST) Date: Tue, 22 Feb 2005 08:41:58 +0000 (GMT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Emanuel Strobl In-Reply-To: <200502220037.48341@harrymail> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-stable@freebsd.org Subject: Re: HZ in RELENG_5? tcp_subr.c related X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Feb 2005 08:43:37 -0000 On Tue, 22 Feb 2005, Emanuel Strobl wrote: > I read this commit message to RELENG_5: > http://www.freebsd.org/cgi/getmsg.cgi?fetch=436074+438355+/usr/local/www/db/text/2005/cvs-all/20050206.cvs-all > and commented out the HZ=1000 line in my kernel config so I use the > default. But I see only 100 interrupts/sec on clk (with systat) so is > it true that the default HZ has changed from 100 to 1000 in RELENG_5? In RELENG_5, the default HZ for amd64 is 1000, but for all other platforms it is 100. So amd64 users will see a ten-fold decrease in tcp_isn_tick() running, but i386 (and other) users will see no change. Robert N M Watson