[dpdk-dev] [PATCH] net/mlx5: remove excessive data prefetch

[Shahaf Shuler]

Tuesday, March 13, 2018 2:45 PM, Adrien Mazarguil:
> Subject: Re: [dpdk-dev] [PATCH] net/mlx5: remove excessive data prefetch
> 
> On Mon, Mar 12, 2018 at 10:05:45AM -0700, Yongseok Koh wrote:
> > In Enhanced Multi-Packet Send (eMPW), entire packet data is prefetched
> > to LLC if it isn't inlined. Even though this helps reducing jitter
> > when HW fetches data by DMA, this can thresh the LLC with evicting
> precious data.
> > And if the size of queue is large and there are many queues, this
> > might not be effective. Also, if application runs on a remote node
> > from the PCIe link, it may not be helpful and can even cause bad results.
> >
> > Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
> 
> Acked-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>

Applied to next-net-mlx, thanks. 

> 
> --
> Adrien Mazarguil
> 6WIND