From: Duncan Sands <baldrick@free.fr>
To: "Stephen J. Gowdy" <gowdy@slac.stanford.edu>
Cc: linux-usb-users@lists.sourceforge.net, janne <sniff@xxx.ath.cx>,
linux-kernel@vger.kernel.org
Subject: Re: [Linux-usb-users] linux 2.6.6, bttv and usb2 data corruption & lockups & poor performance
Date: Thu, 1 Jul 2004 16:23:09 +0200 [thread overview]
Message-ID: <200407011623.09559.baldrick@free.fr> (raw)
In-Reply-To: <Pine.LNX.4.58.0407010704570.4677@antonia.sgowdy.org>
On Thursday 01 July 2004 16:06, Stephen J. Gowdy wrote:
> On Thu, 1 Jul 2004, Duncan Sands wrote:
>
> > > First of all, usb2 throughput was disappointing, i only got about
> > > 5-15MB/s (usually about 8MB/s) while the manufacturer claims sustained
> > > datarate of 35MB/s.
> >
> > Are you sure you plugged your device into a usb 2 port, and not a usb
> > 1.1 port? Also, some products claim to be usb 2 devices, when they are
> > in fact only usb 1.1.
>
> 1.1 devices would only get less than 1MB/s.
Ah, I misread it as 8 M bits / s, which is max 1.1 speed.
Bye, Duncan.
next prev parent reply other threads:[~2004-07-01 14:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.40.0407010017360.1548-100000@xxx.xxx>
2004-07-01 7:04 ` Duncan Sands
2004-07-01 14:06 ` Stephen J. Gowdy
2004-07-01 14:23 ` Duncan Sands [this message]
2004-07-01 15:19 ` Stephen J. Gowdy
2004-07-01 15:10 ` Alan Stern
2004-07-01 15:26 ` Duncan Sands
2004-07-01 15:56 ` Alan Stern
2004-07-05 0:42 ` linux 2.6.7, " janne
2004-07-05 18:28 ` Alan Stern
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