Request for feedback on common data backstore in the kernel

Warner Losh imp at bsdimp.com
Fri Sep 28 13:15:27 PDT 2007


Hans Petter Selasky wrote:
> > Well, the point is that I'm not sure why you're so worried about
> > performance issues with USB and busdma.  Do you have any test data that
> > shows that it's a problem?
> 
> It is a problem on embedded devices. Typically not for an ordinary PC user.

I'm curious.  What's the problem?

Warner


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