[dpdk-dev] DPDK - VIRTIO performance problems

2014-10-13 Thread Yan Freedland
Cc: dev at dpdk.org; Ouyang, Changchun Subject: RE: [dpdk-dev] DPDK - VIRTIO performance problems Hi , > -Original Message- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Matthew Hall > Sent: Sunday, October 12, 2014 9:18 PM > To: Yan Freedland > Cc: dev at dpdk

[dpdk-dev] DPDK - VIRTIO performance problems

2014-10-13 Thread Ouyang, Changchun
Hi , > -Original Message- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Matthew Hall > Sent: Sunday, October 12, 2014 9:18 PM > To: Yan Freedland > Cc: dev at dpdk.org > Subject: Re: [dpdk-dev] DPDK - VIRTIO performance problems > > On Sun, Oct 12,

[dpdk-dev] DPDK - VIRTIO performance problems

2014-10-12 Thread Yan Freedland
Hi I am checking performance DPDK VIRTIO mode running on KVM (Linux ubuntu 3.11.0-15-generic). The maximum throughput I reached was 4Gbps and then I saw an interesting phenomena. Every ~2min traffic stopped completely and then immediately came back. This happened in a periodic fashion. I have

[dpdk-dev] DPDK - VIRTIO performance problems

2014-10-12 Thread Matthew Hall
On Sun, Oct 12, 2014 at 12:37:37PM +, Yan Freedland wrote: > Every ~2min traffic stopped completely and then immediately came back. This > happened in a periodic fashion. To me it sounds like it could be similar to what I've seen when I ran out of mbuf's or ran out of RX / TX descriptor entr