From owner-freebsd-stable@FreeBSD.ORG Fri Apr 11 12:12:33 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 67460106578B for ; Fri, 11 Apr 2008 12:12:33 +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 1F8368FC26 for ; Fri, 11 Apr 2008 12:12:33 +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 1JkI7M-0003Q5-8v; Fri, 11 Apr 2008 13:12:32 +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 1JkI7L-0005Ud-RE; Fri, 11 Apr 2008 13:12:31 +0100 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.69 (FreeBSD)) (envelope-from ) id 1JkI7L-000GIu-QH; Fri, 11 Apr 2008 13:12:31 +0100 To: freebsd-stable@freebsd.org, unga888@yahoo.com In-Reply-To: <722730.35047.qm@web57013.mail.re3.yahoo.com> Message-Id: From: Pete French Date: Fri, 11 Apr 2008 13:12:31 +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 12:12:33 -0000 > What I refer is, when quickly open multiple tabs (7 or > 8) in firefox and click on the fist tab to type user > id while other tabs still downloading, its seems there > is a minor yet noticeable delay that I did not > experience with sched_4bsd. Ah, O.K. - havent noticed that, and it wouldnt bother me really. What I found is that if you are doing a 'make buildworld' in a window then you can't really use firefox properly at all using 4BSD, but you can with ULE. For that I am happy to put up with minor delays - overally it's a lot more usable. > To me, its seems there is no noticeable gain with > sched_ule, but rather the desktop is bit slow to > respond. Try the compiling experiment and see if you get the same effect as I did. For me it;s a bit win, because I couldnt use the desktop when I was compiling code. Swingd and roundabouts though - if you dont od big comiles then it may seem theres no benifit for you. -pete.