From owner-freebsd-current Tue Aug 27 14: 0:42 2002 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 6620737B400 for ; Tue, 27 Aug 2002 14:00:39 -0700 (PDT) Received: from swan.mail.pas.earthlink.net (swan.mail.pas.earthlink.net [207.217.120.123]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0EF1543E3B for ; Tue, 27 Aug 2002 14:00:39 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0470.cvx21-bradley.dialup.earthlink.net ([209.179.193.215] helo=mindspring.com) by swan.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 17jnRv-0001lQ-00; Tue, 27 Aug 2002 14:00:31 -0700 Message-ID: <3D6BE82C.5D24D7B@mindspring.com> Date: Tue, 27 Aug 2002 13:59:24 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Maksim Yevmenkin Cc: Julian Elischer , current@freebsd.org Subject: Re: USB slowdown on recent -current References: <3D6BCEFB.4B40833A@exodus.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 Maksim Yevmenkin wrote: > Julian Elischer wrote: > > > > make sure you have all the debugging turned off. > > there is a LOT of debugging.. > > at the moment. > > well, this was my first attempt. it did not work. even if i > disable INVARIANTS, WITNESS and USB_DEBUG completely it is > still slow as hell :( > > PC-CARD driver works just fine and get 50-60 KBytes/sec even > with all debug stuff enabled. so there should be another > explanation. Do a "cvs diff" by date of the Developer's pre-release 1 for the driver and the code areas ou are interested in, and the changes causing the problem will just display (along with other changes, sorry). The easiest approach is usually a bsearch of the code, which is less than 9 compiles to find the day of the change out of a year and a quarter. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message