Re: [PATCH] x86: Run checksumming in parallel accross multiple alu's

[Eric Dumazet]

On Mon, 2013-10-14 at 16:28 -0400, Neil Horman wrote:

> So, early testing results today.  I wrote a test module that, allocated a 4k
> buffer, initalized it with random data, and called csum_partial on it 100000
> times, recording the time at the start and end of that loop.  Results on a 2.4
> GHz Intel Xeon processor:
> 
> Without patch: Average execute time for csum_partial was 808 ns
> With patch: Average execute time for csum_partial was 438 ns

Impressive, but could you try again with data out of cache ?



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