[dpdk-dev] [PATCH] build: enable packet data prefetch

Liu, Yong yong.liu at intel.com
Wed Sep 23 04:00:20 CEST 2020



> -----Original Message-----
> From: Stephen Hemminger <stephen at networkplumber.org>
> Sent: Tuesday, September 22, 2020 10:12 PM
> To: Liu, Yong <yong.liu at intel.com>
> Cc: Richardson, Bruce <bruce.richardson at intel.com>; dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] build: enable packet data prefetch
> 
> On Tue, 22 Sep 2020 16:21:35 +0800
> Marvin Liu <yong.liu at intel.com> wrote:
> 
> > Data prefetch instruction can preload data into cpu’s hierarchical
> > cache before data access. Virtualized data paths like virtio utilized
> > this feature for acceleration. Since most modern cpus have support
> > prefetch function, we can enable packet data prefetch as default.
> >
> > Signed-off-by: Marvin Liu <yong.liu at intel.com>
> >
> 
> With meson, the project has been using rte_config.h for this.

Thanks a lot,  will send v2 for the change. 

Regards,
Marvin


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