[dpdk-dev] [PATCH 4/4] lib/librte_vhost: improve vhost perf using rte_memset

[Thomas Monjalon]

2016-12-05 16:26, Zhiyong Yang:
> +* **Introduced rte_memset and related test on IA platform.**
> +
> +  Performance drop had been caused in some cases on Ivybridge when DPDK code calls glibc
> +  function memset. It was necessary to introduce more high efficient function to fix it.
> +  The function rte_memset supported three types of instruction sets including sse & avx(128 bits),
> +  avx2(256 bits) and avx512(512bits).
> +
> +  * Added rte_memset support on IA platform.
> +  * Added functional autotest support for rte_memset.
> +  * Added performance autotest support for rte_memset.

No need to reference autotests in the release notes.

> +  * Improved performance to use rte_memset instead of copy_virtio_net_hdr in lib/librte_vhost.

Please describe this change at a higher level. Which case it is improving?