From owner-freebsd-current Tue Feb 5 22: 2:43 2002 Delivered-To: freebsd-current@freebsd.org Received: from mail6.speakeasy.net (mail6.speakeasy.net [216.254.0.206]) by hub.freebsd.org (Postfix) with ESMTP id 10FBE37B426 for ; Tue, 5 Feb 2002 22:02:39 -0800 (PST) Received: (qmail 543 invoked from network); 6 Feb 2002 06:02:37 -0000 Received: from unknown (HELO laptop.baldwin.cx) ([65.90.117.172]) (envelope-sender ) by mail6.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 6 Feb 2002 06:02:37 -0000 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: Date: Wed, 06 Feb 2002 01:02:34 -0500 (EST) From: John Baldwin To: Garance A Drosihn Subject: RE: Performance of -current vs -stable Cc: current@FreeBSD.org Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 06-Feb-02 Garance A Drosihn wrote: > Could it be due to the DDB, INVARIANTS & WITNESS options in the > kernel? If it is that's fine with me, I'm just wondering where > that magnitude of a slowdown would be coming from. WITNESS can really hurt. Quite possibly I should turn it off in GENERIC now (I wouldn't mind if someone else did that.) Before major locking changes people should still use it to look for bugs, but it isn't very efficient I'm afraid. :( -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "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