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

[Neil Horman]

On Sun, Oct 13, 2013 at 09:38:33PM -0700, Andi Kleen wrote:
> Neil Horman <nhorman@xxxxxxxxxxxxx> writes:
> 
> > Sébastien Dugué reported to me that devices implementing ipoib (which don't have
> > checksum offload hardware were spending a significant amount of time computing
> 
> Must be an odd workload, most TCP/UDP workloads do copy-checksum
> anyways. I would rather investigate why that doesn't work.
> 
FWIW, the reporter was reporting this using an IP over Infiniband network.
Neil

> That said the change looks reasonable, but may not fix the root cause.
> 
> -Andi
> 
> -- 
> ak@xxxxxxxxxxxxxxx -- Speaking for myself only
> 
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