On Thu, 2004-12-02 at 01:13, Scott Feldman wrote:

On Wed, 2004-12-01 at 13:35, Lennert Buytenhek wrote: 

quoted

Pretty graph attached.  From ~220B packets or so it does wire speed, but
there's still an odd drop in performance around 256B packets (which is
also there without your patch.)  From 350B packets or so, performance is
identical with or without your patch (wire speed.)

Seems this is helping PCI nics but not PCI-X.  I was using PCI 32/33. 
Can't explain the dip around 256B.

Interesting thought. I also saw improvements with my batching patch for
PCI 32/32 but nothing noticeable in PCI-X 64/66.

cheers,
jamal