[dpdk-dev] [PATCH v3] examples/vhost: fix perf regression

2016-07-21 09:34, Yuanhan Liu: > On Thu, Jul 21, 2016 at 12:42:45AM +, Jianfeng Tan wrote: > > We find significant perfermance drop introduced by below commit, > > when vhost example is started with --mergeable 0 and inside vm, > > kernel virtio-net driver is used to do ip based forwarding. >

[dpdk-dev] [PATCH v3] examples/vhost: fix perf regression

On Thu, Jul 21, 2016 at 12:42:45AM +, Jianfeng Tan wrote: > We find significant perfermance drop introduced by below commit, > when vhost example is started with --mergeable 0 and inside vm, > kernel virtio-net driver is used to do ip based forwarding. > > The commit, 859b480d5afd ("vhost:

[dpdk-dev] [PATCH v3] examples/vhost: fix perf regression

Add the tested-by:) Tested-by: Qian Xu - Test Commit: 608487f3fc96704271c624d0f3fe9d7fb2187aea - OS/Kernel: Fedora 21/4.1.13 - GCC: gcc (GCC) 4.9.2 20141101 (Red Hat 4.9.2-1) - CPU: Intel(R) Xeon(R) CPU E5-2695 v4 @ 2.10 - NIC: Intel(R) Ethernet Controller X710 for 10GbE SFP+ - Total 2 cases, 2

[dpdk-dev] [PATCH v3] examples/vhost: fix perf regression

We find significant perfermance drop introduced by below commit, when vhost example is started with --mergeable 0 and inside vm, kernel virtio-net driver is used to do ip based forwarding. The commit, 859b480d5afd ("vhost: add guest offload setting"), adds support for VIRTIO_NET_F_GUEST_TSO4 and