Re: [dpdk-dev] [PATCH] net/af_xdp: optimisations to improve packet loss

2020-06-23 Thread Loftus, Ciara
> > On Fri, 12 Jun 2020 14:17:46 + > Ciara Loftus wrote: > > > This commit makes some changes to the AF_XDP PMD in an effort to > improve > > its packet loss characteristics. > > > > 1. In the case of failed transmission due to inability to reserve a tx > > descriptor, the PMD now pulls from

Re: [dpdk-dev] [PATCH] net/af_xdp: optimisations to improve packet loss

2020-06-16 Thread Stephen Hemminger
On Fri, 12 Jun 2020 14:17:46 + Ciara Loftus wrote: > This commit makes some changes to the AF_XDP PMD in an effort to improve > its packet loss characteristics. > > 1. In the case of failed transmission due to inability to reserve a tx > descriptor, the PMD now pulls from the completion ring

Re: [dpdk-dev] [PATCH] net/af_xdp: optimisations to improve packet loss

2020-06-16 Thread Ye Xiaolong
Hi, Ciara Thanks for the work, really good improvement. On 06/12, Ciara Loftus wrote: >This commit makes some changes to the AF_XDP PMD in an effort to improve >its packet loss characteristics. > >1. In the case of failed transmission due to inability to reserve a tx >descriptor, the PMD now pull

[dpdk-dev] [PATCH] net/af_xdp: optimisations to improve packet loss

2020-06-12 Thread Ciara Loftus
This commit makes some changes to the AF_XDP PMD in an effort to improve its packet loss characteristics. 1. In the case of failed transmission due to inability to reserve a tx descriptor, the PMD now pulls from the completion ring, issues a syscall in which the kernel attempts to complete outstan