From owner-freebsd-stable@FreeBSD.ORG Fri Apr 11 11:08:38 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 849A51065673 for ; Fri, 11 Apr 2008 11:08:38 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from angel.ticketswitch.com (angel.ticketswitch.com [IPv6:2002:57e0:1d4e::1]) by mx1.freebsd.org (Postfix) with ESMTP id 4025E8FC1D for ; Fri, 11 Apr 2008 11:08:38 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from [10.50.50.2] (helo=smaug.rattatosk) by angel.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1JkH7T-0002ZX-Nv; Fri, 11 Apr 2008 12:08:35 +0100 Received: from dilbert.rattatosk ([10.50.50.6] helo=dilbert.ticketswitch.com) by smaug.rattatosk with esmtp (Exim 4.69 (FreeBSD)) (envelope-from ) id 1JkH7T-0004qL-JZ; Fri, 11 Apr 2008 12:08:35 +0100 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.69 (FreeBSD)) (envelope-from ) id 1JkH7T-000Etr-IW; Fri, 11 Apr 2008 12:08:35 +0100 To: freebsd-stable@freebsd.org, unga888@yahoo.com In-Reply-To: <445668.60539.qm@web57011.mail.re3.yahoo.com> Message-Id: From: Pete French Date: Fri, 11 Apr 2008 12:08:35 +0100 Cc: Subject: Re: sched_ule performance on single CPU X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Apr 2008 11:08:38 -0000 > I have noted early April that RELENG_7 is upgraded to > sched_ule by default and gave it a try with sched_ule > until today. My desktop is a 3GHz single Intel Pentium > 4 processor with 512MB RAM. I have noted by desktop > response wise sched_4bsd is better, ie. the desktop is > more responsive. Very curious - when I first installed 7.0 the desktop performance was horrible and people told me to switch from BSd to ULE shceduler. Which I did and it was much better, and I have used ULE on all machines even since. I amm surprised that you find it worse - what are the symptoms here ? -pete.