From owner-freebsd-current@FreeBSD.ORG Thu Feb 1 20:04:02 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 871A516A403 for ; Thu, 1 Feb 2007 20:04:02 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outM.internet-mail-service.net (outM.internet-mail-service.net [216.240.47.236]) by mx1.freebsd.org (Postfix) with ESMTP id 714B313C478 for ; Thu, 1 Feb 2007 20:04:02 +0000 (UTC) (envelope-from julian@elischer.org) Received: from shell.idiom.com (HELO idiom.com) (216.240.47.20) by out.internet-mail-service.net (qpsmtpd/0.32) with ESMTP; Thu, 01 Feb 2007 11:42:21 -0800 Received: from [192.168.2.5] (home.elischer.org [216.240.48.38]) by idiom.com (Postfix) with ESMTP id 293C9125B4A; Thu, 1 Feb 2007 12:03:21 -0800 (PST) Message-ID: <45C24788.2040708@elischer.org> Date: Thu, 01 Feb 2007 12:03:20 -0800 From: Julian Elischer User-Agent: Thunderbird 1.5.0.9 (Macintosh/20061207) MIME-Version: 1.0 To: Ivan Voras References: <45C24113.7000608@elischer.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: lock contention etc. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Feb 2007 20:04:02 -0000 Ivan Voras wrote: > Julian Elischer wrote: > >> 3762.94 real 2627.66 user 1275.78 sys >> 2465.10 real 2958.94 user 1918.64 sys >> 2262.88 real 4322.31 user 3333.58 sys > >> (2 processors with HTT) (looks like 4 processors) >> -current, sched_4bsd > > I'm possibly stating the obvious, but did you try without HTT or on a > real 4proc machine? Much of the contention might be an artifact of HTT > (e.g. HTT "logical" processor blocking when real work could be done > because the internal processor units are busy elsewhere). > > yes I just sent an email stating that. And I'm trying it again with the virtual cores turned off.