[dpdk-dev] [PATCH] net/i40e: add packet prefetch

Ferruh Yigit ferruh.yigit at intel.com
Mon Apr 3 12:31:06 CEST 2017

On 4/1/2017 3:01 AM, Pei, Yulong wrote:
> Hi All
> In Non-vector mode, without this patch, single core performance can reach 37.576Mpps with 64Byte packet,
> But after applied this patch , single core performance downgrade to 34.343Mpps with 64Byte packet.

Thanks Yulong for the test.


Is above test results match with your result?

If there is a degradation, this patch should not be merged.


> Best Regards
> Yulong Pei
> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Vladyslav Buslov
> Sent: Wednesday, March 1, 2017 6:57 PM
> To: Zhang, Helin <helin.zhang at intel.com>; Wu, Jingjing <jingjing.wu at intel.com>; Yigit, Ferruh <ferruh.yigit at intel.com>
> Cc: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH] net/i40e: add packet prefetch
> Prefetch both cache lines of mbuf and first cache line of payload if CONFIG_RTE_PMD_PACKET_PREFETCH is set.
> Signed-off-by: Vladyslav Buslov <vladyslav.buslov at harmonicinc.com>

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