From owner-freebsd-hackers@FreeBSD.ORG Mon Mar 21 23:42:58 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5FB7D16A4CE for ; Mon, 21 Mar 2005 23:42:58 +0000 (GMT) Received: from jupiter.nswebhost.com (jupiter.nswebhost.com [72.9.236.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id D7DFF43D58 for ; Mon, 21 Mar 2005 23:42:57 +0000 (GMT) (envelope-from full-disclosure@csilva.org) Received: from [80.172.153.55] (helo=[192.168.1.11]) by jupiter.nswebhost.com with esmtpa (Exim 4.44) id 1DDWXn-0002XS-Kd; Mon, 21 Mar 2005 18:42:48 -0500 Received: from 127.0.0.1 (AVG SMTP 7.0.308 [266.8.0]); Mon, 21 Mar 2005 23:42:40 +0000 Message-ID: <423F5BF0.7060701@csilva.org> Date: Mon, 21 Mar 2005 23:42:40 +0000 From: Carlos Silva aka|Danger_Man| User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Julian Elischer , hackers References: <423F5788.2070005@csilva.org> <423F59A0.1080308@elischer.org> In-Reply-To: <423F59A0.1080308@elischer.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - jupiter.nswebhost.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - csilva.org X-Source: X-Source-Args: X-Source-Dir: Subject: Re: USB 2.0 with bogus Data Rate X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Mar 2005 23:42:58 -0000 Julian Elischer wrote: > > > Carlos Silva aka|Danger_Man| wrote: > >> Hi hackers, >> >> I have a little problem with my external disk drive, my data transfer >> rate is 1.000MB/s. >> I have USB 2.0 so the rate is larger, right? >> Somebody has an idea how to enlarge the rate? > > > > the data rate is bogus because it is printed by the scsi/cam code > which doesn't know about USB speeds. > > This has been improved in 6.x and may flow back to 5.4.. > in the meantime, ignore that number and use > dd if=/dev/da0 of=/dev/null bs=64k > to see what your rate really is.. Here is the rate: osiris# dd if=/dev/da0 of=/dev/null bs=64k ^C16+0 records in 16+0 records out 1048576 bytes transferred in 14.741515 secs (71131 bytes/sec) osiris# Ugly! regards > >> >> Regards, >> >> Carlos >> >> >> osiris# dmesg | grep usb && dmesg | grep da0 >> usb0: on uhci0 >> usb0: USB revision 1.0 >> usb1: on uhci1 >> usb1: USB revision 1.0 >> usb2: on uhci2 >> usb2: USB revision 1.0 >> ehci_pci_attach: companion usb1 >> ehci_pci_attach: companion usb2 >> usb3: EHCI version 0.95 >> usb3: companion controllers, 2 ports each: usb1 usb2 >> usb3: on ehci0 >> usb3: USB revision 2.0 >> GEOM: create disk da0 dp=0xc2d96850 >> da0 at umass-sim0 bus 0 target 0 lun 0 >> da0: Fixed Direct Access SCSI-0 device >> da0: 1.000MB/s transfers >> da0: 190782MB (390721968 512 byte sectors: 255H 63S/T 24321C) >> osiris# >> >> osiris# usbdevs >> addr 1: UHCI root hub, Intel >> addr 1: UHCI root hub, VIA >> addr 1: UHCI root hub, VIA >> addr 2: USB 2.0 Storage Device, Acer Labs >> addr 1: EHCI root hub, (0x1106) >> osiris# >> >> osiris# camcontrol devlist >> at scbus0 target 0 lun 0 (da0,pass0) >> osiris# >> >> >> >> >> >> _______________________________________________ >> freebsd-hackers@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers >> To unsubscribe, send any mail to >> "freebsd-hackers-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to > "freebsd-hackers-unsubscribe@freebsd.org"