From owner-freebsd-current@FreeBSD.ORG  Fri Jan 26 10:00:42 2007
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Date: Fri, 26 Jan 2007 13:00:40 +0300
From: "Alexey Karagodov" <karagodov@gmail.com>
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Subject: Re: Interesting speed benchmarks
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what manufacturer says about usb speeds?
that is the question


2007/1/26, Stefan Ehmann <shoesoft@gmx.net>:
>
> On Friday 26 January 2007 03:24, M. Warner Losh wrote:
> > On a lark, I just got a combo USB/Firewire external disk drive.  I ran
> > some crude benchmarks, and I was surprised by what I found.  This is
> > on a fairly stock -current kernel.
> >
> > Firewire does around 40MB/s, while USB 2.0 maxes out at about 12MB/s.
> > This is with a simple dd command:
>
> On my i386 notebook with USB 2.0 enclosure.
> Linux: 31.5MB/s
> FreeBSD: 27.5MB/s
>
> There's still room for improvement but numbers don't seem that bad.
>
> Maybe you should try knoppix or so to verify it's not the drive's fault.
> Other
> than that I'd also guess it's an amd64 problem.
>
> Stefan
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