From: haibinzhang(张海斌) <>
Date: Fri, 6 Apr 2018 08:22:37 +0000

> handle_tx will delay rx for tens or even hundreds of milliseconds when tx busy
> polling udp packets with small length(e.g. 1byte udp payload), because setting
> VHOST_NET_WEIGHT takes into account only sent-bytes but no single packet 
> length.
> Ping-Latencies shown below were tested between two Virtual Machines using
> netperf (UDP_STREAM, len=1), and then another machine pinged the client:
> Signed-off-by: Haibin Zhang <>
> Signed-off-by: Yunfang Tai <>
> Signed-off-by: Lidong Chen <>

Michael and Jason, please review.

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