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

2020-09-22 Thread Liu, Yong
> -Original Message- > From: Stephen Hemminger > Sent: Tuesday, September 22, 2020 10:12 PM > To: Liu, Yong > Cc: Richardson, Bruce ; dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH] build: enable packet data prefetch > > On Tue, 22 Sep 2020 16:21:35 +

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

2020-09-22 Thread Stephen Hemminger
On Tue, 22 Sep 2020 16:21:35 +0800 Marvin Liu 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

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

2020-09-22 Thread Marvin Liu
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