From owner-freebsd-current@FreeBSD.ORG Mon Jul 2 05:48:26 2007 Return-Path: X-Original-To: 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 3701416A469 for ; Mon, 2 Jul 2007 05:48:26 +0000 (UTC) (envelope-from jroberson@chesapeake.net) Received: from webaccess-cl.virtdom.com (webaccess-cl.virtdom.com [216.240.101.25]) by mx1.freebsd.org (Postfix) with ESMTP id 0224A13C465 for ; Mon, 2 Jul 2007 05:48:25 +0000 (UTC) (envelope-from jroberson@chesapeake.net) Received: from [192.168.1.101] (c-71-231-138-78.hsd1.or.comcast.net [71.231.138.78]) (authenticated bits=0) by webaccess-cl.virtdom.com (8.13.6/8.13.6) with ESMTP id l625mOXO062501 (version=TLSv1/SSLv3 cipher=DHE-DSS-AES256-SHA bits=256 verify=NO) for ; Mon, 2 Jul 2007 01:48:25 -0400 (EDT) (envelope-from jroberson@chesapeake.net) Date: Sun, 1 Jul 2007 22:48:04 -0700 (PDT) From: Jeff Roberson X-X-Sender: jroberson@10.0.0.1 To: current@freebsd.org In-Reply-To: <20070701224452.I552@10.0.0.1> Message-ID: <20070701224741.M552@10.0.0.1> References: <20070701224452.I552@10.0.0.1> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Subject: Re: New SCHED_SMP diff. 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: Mon, 02 Jul 2007 05:48:26 -0000 I forgot: http://people.freebsd.org/~jeff/schedsmp.diff Thanks, Jeff On Sun, 1 Jul 2007, Jeff Roberson wrote: > I fixed a major bug in SCHED_SMP that impacted some users causing bad > performance and invalid load counts. Attilio also added support for i386 > based machines. I have tested on UP which works although INVARIANTS and > WITNESS don't work properly on UP kernels. Single processor SMP kernels work > fine. > > This diff also includes another patch that I intend to commit to current > which significantly improved write performance for mysql by removing all use > of Giant in fcntl(). > > Please report any stability or performance problems with this patch. The > more positive reports I get the more likely it will go into 7.0. > > Thanks, > Jeff >