From owner-freebsd-performance@FreeBSD.ORG Thu Jul 12 18:17:37 2007 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3997216A421 for ; Thu, 12 Jul 2007 18:17:37 +0000 (UTC) (envelope-from nevans@talkpoint.com) Received: from mailbox.talkpoint.com (mailbox.talkpoint.com [204.141.15.162]) by mx1.freebsd.org (Postfix) with ESMTP id 12B4B13C448 for ; Thu, 12 Jul 2007 18:17:36 +0000 (UTC) (envelope-from nevans@talkpoint.com) Received: from localhost (localhost [127.0.0.1]) by mailbox.talkpoint.com (Postfix) with ESMTP id 3BD2F231C491 for ; Thu, 12 Jul 2007 13:57:05 -0400 (EDT) X-Virus-Scanned: amavisd-new at Received: from mailbox.talkpoint.com ([127.0.0.1]) by localhost (mailbox.talkpoint.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZOzMdliaMcxu for ; Thu, 12 Jul 2007 13:57:05 -0400 (EDT) Received: from pleiades.nextvenue.com (pleiades.nextvenue.com [204.141.15.194]) by mailbox.talkpoint.com (Postfix) with ESMTP id 22353231C48A for ; Thu, 12 Jul 2007 13:57:05 -0400 (EDT) Date: Thu, 12 Jul 2007 13:56:46 -0400 From: Nick Evans To: freebsd-performance@freebsd.org Message-ID: <20070712135646.2a2303ff@pleiades.nextvenue.com> In-Reply-To: <20070701224452.I552@10.0.0.1> References: <20070701224452.I552@10.0.0.1> X-Mailer: Claws Mail 2.8.0 (GTK+ 2.10.9; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: New SCHED_SMP diff. X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jul 2007 18:17:37 -0000 On Sun, 1 Jul 2007 22:47:33 -0700 (PDT) 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 > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" Jeff, I have a new Xeon E5310 system that next month will have an additional 4 cores. Do you have any specific workloads you need tested for SCHED_SMP or any other locking changes? I can give you or Kris a shell if you need direct access. Nick