[dpdk-dev] [PATCH] eal: fix rte_memcpy perf in hsw/bdw

Wang, Zhihong zhihong.wang at intel.com
Thu May 26 11:36:58 CEST 2016


> -----Original Message-----
> From: Xu, Qian Q
> Sent: Thursday, May 26, 2016 1:19 PM
> To: Wang, Zhihong <zhihong.wang at intel.com>; dev at dpdk.org
> Cc: Wang, Zhihong <zhihong.wang at intel.com>
> Subject: RE: [dpdk-dev] [PATCH] eal: fix rte_memcpy perf in hsw/bdw
> 
> Tested-by: Qian Xu <qian.q.xu at intel.com>
> 
> - Test Commit: 8f6f24342281f59de0df7bd976a32f714d39b9a9
> - OS/Kernel: Fedora 21/4.1.13
> - GCC: gcc (GCC) 4.9.2 20141101 (Red Hat 4.9.2-1)
> - CPU: Intel(R) Xeon(R) CPU E5-2695 v4 @ 2.10
> - Total 1 cases, 1 passed, 0 failed.
[...]
> 
> 8. Compare #1 with #2, can see ~5% performance increase on BDW-EP CPU
> server.

Thanks Qian! HSW should suffer even more from this issue.



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