[dpdk-dev] [PATCH] vhost: adaptively batch small guest memory copies

Jens Freimann jfreimann at redhat.com
Mon Aug 28 08:31:23 CEST 2017


Hi Tiwei,

On Thu, Aug 24, 2017 at 10:19:39AM +0800, Tiwei Bie wrote:
>This patch adaptively batches the small guest memory copies.
>By batching the small copies, the efficiency of executing the
>memory LOAD instructions can be improved greatly, because the
>memory LOAD latency can be effectively hidden by the pipeline.
>We saw great performance boosts for small packets PVP test.

this sounds interesting. Do you have numbers showing how much
performance improved for small packets?

regards,
Jens 


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