From owner-freebsd-usb@FreeBSD.ORG Thu Mar 5 08:38:16 2009 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6372610656F6 for ; Thu, 5 Mar 2009 08:38:16 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe10.swipnet.se [212.247.155.33]) by mx1.freebsd.org (Postfix) with ESMTP id E9E978FC0C for ; Thu, 5 Mar 2009 08:38:15 +0000 (UTC) (envelope-from hselasky@c2i.net) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.0 c=1 a=Ma5krZdYoiIA:10 a=-DXRHlJb_54A:10 a=j+k/Ze5hWUCaCztCgEjzDQ==:17 a=Du-YiaFk4znbJyAltiYA:9 a=qpbyh_NP7AOaadLe4cvJk-FX6HcA:4 a=LY0hPdMaydYA:10 Received: from [81.191.55.181] (account mc467741@c2i.net HELO laptop) by mailfe10.swip.net (CommuniGate Pro SMTP 5.2.6) with ESMTPA id 1036036392; Thu, 05 Mar 2009 09:38:14 +0100 From: Hans Petter Selasky To: freebsd-usb@freebsd.org Date: Thu, 5 Mar 2009 09:40:44 +0100 User-Agent: KMail/1.9.7 References: <200903010045.44904.man@email.com.ua> <200903050009.48188.hselasky@c2i.net> <20090305004839.GH92789@stlux503.dsto.defence.gov.au> In-Reply-To: <20090305004839.GH92789@stlux503.dsto.defence.gov.au> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200903050940.44754.hselasky@c2i.net> Cc: Subject: Re: Low perfomance when read from usb flash drive X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Mar 2009 08:38:16 -0000 On Thursday 05 March 2009, Wilkinson, Alex wrote: > Excuse my ignorance, but what is meant by "doorbell" ? > Doorbell is an EHCI callback interrupt when the Async queue has been checked for removed QH's. --HPS