Well, probably not today, but I hope that it
can soon.
Bruce?
~Randy
___________________________________________________
|Randy Dunlap Intel Corp., DAL Sr. SW Engr.|
|randy.dunlap.at.intel.com 503-696-2055|
|NOTE: Any views presented here are mine alone |
|and may not represent the views of my employer. |
|_________________________________________________|
> -----Original Message-----
> From: Pavel Machek [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, March 29, 2000 2:49 AM
> To: Dunlap, Randy; '[EMAIL PROTECTED]'
> Subject: Re: [linux-usb] FW: usbdevfs comparison (Rio500)
>
> > Hi everyone. Just performed a comparison by dumping Sting's Mercury
> > Falling CD to the Rio. Here's the results (using uhci.o with unlink
> > optimzations turned on) I seem to remember a uhci driver
> that was MUCH
> > faster at one time. Looks like usb-uhci is a bit faster
> and the usbdevfs
> > vs. kernel space very comparable
> >
> > ===========================================================
> > With uhci.o (with unlink optimizations turned on)
> >
> > USBDEVFS Kernel Space Driver
> > End Time 14:28:57 End Time 14:46:34
> > Start Time 14:15:07 Start Time 14:32:32
> > --------- --------
> > Time used 13:50 Time used 14:02
> >
> > ===========================================================
> > Now, with usb-uhci.o
> >
> > USBDEVFS Kernel Space Driver
> > End Time 14:57:03 End Time 14:52:12
> > Start Time 14:54:50 Start Time 14:49:00
> > -------- --------
> > Time used 2:13 Time used 3:12
>
> Hmm, userspace approach was even _faster_?
>
> Anyways, does that mean that rio is going out of the kernel?
> Pavel
> --
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