Re: Interesting speed benchmarks

On 1/26/07, Colin Percival <cperciva@xxxxxxxxxxx> wrote:
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.

Either amd64 is slower than i386, there has been a performance regression
between 6.2-RELEASE and whatever version of FreeBSD you're running, or you
have a rather slow external drive. I get 25MB/s from my Vantec Nexstar3
USB 2.0 enclosure:

http://www.daemonology.net/blog/2006-01-28-vantex-nexstar3.html

I've always (since 5.x I think) got 25Mb/s on i386
and half that on amd64, no matter what equipment I
try.
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  • Re: Interesting speed benchmarks
    ... On 1/26/07, Stefan Ehmann wrote: ... > On a lark, I just got a combo USB/Firewire external disk drive. ... > some crude benchmarks, and I was surprised by what I found. ...
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