From owner-freebsd-current@FreeBSD.ORG Sun Dec 7 13:43:17 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2D5C016A4CE for ; Sun, 7 Dec 2003 13:43:17 -0800 (PST) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 716E843FB1 for ; Sun, 7 Dec 2003 13:43:16 -0800 (PST) (envelope-from peter@wemm.org) Received: from wemm.org (localhost [127.0.0.1]) by canning.wemm.org (Postfix) with ESMTP id 56D842A8D5; Sun, 7 Dec 2003 13:43:16 -0800 (PST) (envelope-from peter@wemm.org) X-Mailer: exmh version 2.6.3 04/04/2003 with nmh-1.0.4 To: Jeff Roberson In-Reply-To: <20031207082612.D4201-100000@mail.chesapeake.net> Date: Sun, 07 Dec 2003 13:43:16 -0800 From: Peter Wemm Message-Id: <20031207214316.56D842A8D5@canning.wemm.org> cc: current@freebsd.org Subject: Re: ULE and current. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Sun, 07 Dec 2003 21:43:17 -0000 Jeff Roberson wrote: > Now that 5.2 has been branched I will soon be making ULE the default > scheduler in GENERIC. I'm hoping that before I throw the switch I'll get > more feedback from current users. The only big change I have in the > pipeline for ULE is improved HTT support. This has all been coded and > tested locally. I'm going to commit this after things settle down on HEAD > a little more. > > The plan is to leave ULE as the default until we get to 5.3 at which point > we will decide whether or not it is production quality. The most > untest workload that I know of is on massive multiuser systems with lots > of interactive tasks. If anyone has such a system, I would love to hear > of feedback while running ULE. For anyone else, if your workload is > either improved or hindered, I'd appreciate a mail with the a description > of your workload, your hardware, behavior with ULE, and behavior with > 4BSD. FWIW, this sounds good to me. We've been starting to run ULE by default on the reference machines on the freebsd.org cluster for a while. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5