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SubjectRE: Accelerated TCP/IP support from kernel

Bharath Madhavan writes:
> I guess 3c905c NIC supports HW checksumming. Is this true?


> In this case, do we have any benchmarking for this card
> with and without ZERO_COPY (and HW checksumming). I am eager to
> know by how many times did the system throughput increase?

It doesn't matter with 100baseT cards, they are slow enough that even
with the cpu doing the data copies the link may be easily saturated.
What you will get is decreased CPU utilization.

You need to go to gigabit or faster link speeds to see any real
throughput improvement.

David S. Miller

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