Re: Slow downloads: NSLU2
On Wed, 2007-05-30 at 16:39 +0100, Bob Cox wrote:
> In article <1180535721.6518.3.camel@mattias-laptop>,
> Mattias <firstname.lastname@example.org> wrote:
> > tis 2007-05-29 klockan 20:37 +0200 skrev David Fokkema:
> >> Hi,
> >> Basically, I have no idea, but:
> >> If you download large files (say, packages) from a fast site (say, a
> >> debian server near you), what transfer rates do you get?
> >> On Tue, 2007-05-29 at 20:15 +0200, Mattias wrote:
> >> > When I copy files from a client to the nslu I've noticed the max speed
> >> > is 10Mbit/s (1Mbyte/s) is that the maximum speed for the nslu2? Not
> >> > 100Mbit?
> >> 1 Mbyte/s??? How did you copy these files? FTP? HTTP? Samba? NFS? I
> >> _never_ got 1 Mb/s, only between 600-800 kb/s.
> >> David
> > Ow! Then I should be happy with that speeds I guess! =)
> > Hmm.. I dont really know what protocol is used, I've mounted a folder on
> > the slug as a folder on my ubuntu-client.
> Your USB device is working at USB2 speeds?
> What do you see from:
> grep 'Spd=' /proc/bus/usb/devices
> Using wget across my local network, I have just downloaded a 175MB
> (183611392 bytes) file from one slug to another slug  and the reported
> speed was 2.4 MB (MBytes) /sec:
> 16:31:54 (2.40 MB/s) - `testmovie.mpg' saved [183611392/183611392]
> real 1m13.568s
> user 0m6.150s
> sys 0m51.580s
>  wget on Slug with NSLU2/Debian Etch and apache2 on a Slug with
> OpenDebianSlug Sarge 3.1
Well, well, well! On checking, I noticed that my CPU is ~70% idle.
Measuring bandwidth with iperf results in 3.5 Mbit/s. I misread that
last time as 3.5 Mb/s. However, 3.5 Mbit/s should give me only about 450
Kb/s, I certainly get 600 Kb/s over HTTP. My hard disk is running with
Spd=480. That is full speed usb2, right? So, it probably is my network
connection, which is over wifi. I'll try it on cable, some time soon.
> Bob Cox. Stoke Gifford, near Bristol, UK.