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On Thu, Jun 19, 2003 at 05:10:21PM +0100, Major A wrote:
>
> What's the host controller you're using? I used to see the same
> problem here, but it went away altogether with a couple of patches
> (which you seem to have applied) and a different EHCI controller.
>
VT6202, seems to be problematic still...
> > > About possible performance improvement on 2.5 ehci/usb-storage:
> > > I've tested with 2.5.71, and I don't see a significant improvement over 2.4.
> > > (Both are arround 7.7 MB/s for read, 10 MB/s for write). Disk can do arround
> > > 40 MB/s reads on IDE.
> >
> > I don't know what's going on there.
>
> I'm seeing the same speed here as well, and the disk can certainly do
> more than 10MB/s sustained. I'm using the same USB-IDE bridge
> (Genesys).
I have Genesys GL811USB too. I guess it sucks.
> As to write speed, I wouldn't expect much more than 10MB/s, since that
> is what modern laptop drives can handle (I'm assuming you're using a
> laptop drive?). 40MB/s seems more like a maximum for short bursts,
> probably using the cache as well.
Mine is a standard 3.5 inch IDE drive, QUANTUM FIREBALLP AS60.0 60GB, at
7200 rpm.
Vedran
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