From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matthew Hall <mhall-Hv3ogNYU3JfZZajBQzqCxQ@public.gmane.org>
Subject: Re: DPDK - VIRTIO performance problems
Date: Sun, 12 Oct 2014 06:17:38 -0700
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To: Yan Freedland <YanF-ipht3Rx8jL5BDgjK7y7TUQ@public.gmane.org>
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On Sun, Oct 12, 2014 at 12:37:37PM +0000, 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 entries. It could be worth checking 
the error counters on the interfaces with DPDK and Linux OS / ethtool to see 
what might be incrementing during the failed time periods.

Matthew.