From owner-freebsd-current Thu Feb 22 5:47:52 2001 Delivered-To: freebsd-current@freebsd.org Received: from meow.osd.bsdi.com (meow.osd.bsdi.com [204.216.28.88]) by hub.freebsd.org (Postfix) with ESMTP id A943F37B65D for ; Thu, 22 Feb 2001 05:47:47 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by meow.osd.bsdi.com (8.11.2/8.11.2) with ESMTP id f1MDh6l88539; Thu, 22 Feb 2001 05:43:06 -0800 (PST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20010222081232.A7793@webcom.it> Date: Thu, 22 Feb 2001 05:45:02 -0800 (PST) From: John Baldwin To: Andrea Campi Subject: Re: -CURRENT slowdown in last 2 weeks Cc: freebsd-current@FreeBSD.org Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 22-Feb-01 Andrea Campi wrote: >> >> Hmm, Feb 3-5 (looks). >> >> You mean the preemptive scheduling committed on Feb 1? Can you try updating >> to early this week to see if it goes away? > > Hi John, > > every "recent" version I tried resulted in a slowdown so I didn't recompile > very > often; until tonight, I was still runninng a kernel from 20010214. > Tonight I created a new kernel but I finally figured out I should take out > most > debugging options: > > options DDB ># options WITNESS ># options WITNESS_DDB ># options MUTEX_DEBUG ># options INVARIANT_SUPPORT ># options INVARIANTS Oh goodness, don't use MUTEX_DEBUG, that is the killer. You want WITNESS and INVARIANTS back on though. -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message