[dpdk-dev] [PATCH] net/virtio: enable packet data prefetch on x86

[Liu, Yong]

+ more people into this conversation.  IMHO, restore to previous state is the best choice by now.

> -----Original Message-----
> From: David Marchand <david.marchand at redhat.com>
> Sent: Friday, November 13, 2020 3:27 PM
> To: Liu, Yong <yong.liu at intel.com>
> Cc: Maxime Coquelin <maxime.coquelin at redhat.com>; Xia, Chenbo
> <chenbo.xia at intel.com>; dev <dev at dpdk.org>; Richardson, Bruce
> <bruce.richardson at intel.com>
> Subject: Re: [dpdk-dev] [PATCH] net/virtio: enable packet data prefetch on
> x86
> 
> On Fri, Nov 13, 2020 at 2:20 AM Liu, Yong <yong.liu at intel.com> wrote:
> > > Yes and this will also solve https://patchwork.dpdk.org/patch/83468/.
> > > Thanks.
> > >
> >
> > Agreed, original patch was intended to recover prefetch configuration in
> meson build.
> > Please check http://patchwork.dpdk.org/patch/78451/.
> > And it leaded a discussion about how to utilize prefetch function
> optimally.
> > Due to no conclusion for current position is best for other platforms
> except x86, now only enable prefetch in virtio + x86.
> 
> I disagree.
> No conclusion means the best is to restore the previous state, i.e.
> enable this option for all platforms.
> 
> If later other architectures want to change this, this can revisit.
> 
> 
> --
> David Marchand