> Are you running with MSI-X enabled?

Yes, as well as RSS.

> There is another patch we can add which enables DCA for data of received 
> packets, but you need to run a test which actually accesses the data (usually 
> not benchmarks)

My microbechmark program actually touches all received bytes, in order
to emulate the cache behavior of minimal application layer. Does not
currently ixgbe 2.0.34.3 prefetches payload into caches even if I give
the driver a DCA=2 option?

> Let me know if you're interested in applying this patch.

I am really interested. Please let me apply the patch.
Thanks. :-)

- Sangjin Han

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