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SubjectRe: [PATCH] x86: Run checksumming in parallel accross multiple alu's
>   indeed, our typical workload is connected mode IPoIB on mlx4 QDR hardware
> where one cannot benefit from hardware offloads.

Is this with sendfile?

For normal send() the checksum is done in the user copy and for receiving it
can be also done during the copy in most cases


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