Re: Network performance issue on CentOS 6 KVM

[linuxsupport <lin.support@xxxxxxxxx>]

No one experienced such issue?


On Mon, Jun 3, 2013 at 4:41 PM, linuxsupport <lin.support@xxxxxxxxx> wrote:

> Hi All,
>
> I am using CentOS 6.4 on 4 servers, guests are also CentOS 6.4
>
> Network is setup using virtio, and vhost, this works well but sometime I
> see connection issue from application to DB.
>
> I found that sometimes latency increases from 0.200 ms approx to 123ms or
> even more sometimes, this happens only for 1-2 packets but keep happening
> after sometime.
>
> CPU load remains under 1, CPU usages is around 20-30%.
>
> If I ping from host machine to host machine then there is consistent
> latency, this only happens when ping from a guest machine to either other
> guest machines or a host machine.
>
> Did anyone face similar issue?
>
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