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SubjectRE: e1000 performance hack for ppc64 (Power4)
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Herman wrote:
> Its only the MTU 1500 case with non-TSO that we are
> discussing here so copying a few bytes is really not a big
> deal as the data is already in cache from copying into
> kernel. If it lets the adapter run at speed, thats what
> customers want and what we need. Granted, if the HW could
> deal with this we would not have to, but thats not the case
> today so I want to spend a few CPU cycles to get best
> performance. Again, if this is not done on other platforms, I
> don't understand why you care.

I care because adding the arch-specific hack creates a maintenance issue
for me.

-scott

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