[libvirt-users] Fwd: Does Set Block IO tune take effect in the same session.

[vikrant verma]

Hello Michal,

Throttling is working now after setting inbound.average = 10  (i have set
other values to 0 )
But i am observing an inconsistent behavior in the observed throttling
bandwidth

when i set  inbound.average = 10 , i observed bandwidth of 24 kbps
when i set  inbound.average = 100 , i observed bandwidth of 186 kbps
when i set  inbound.average = 1024 , i observed bandwidth of 2MBps

i measured the above by doing scp of a 4MB file from host to VM. Is this
behavior is expected?

Regards,
Vikrant



On Tue, May 28, 2013 at 6:57 PM, Michal Privoznik <mprivozn at redhat.com>wrote:

> On 27.05.2013 12:36, vikrant verma wrote:
> > Hello Michal,
> >
> > I am using the following code -
> >
> >  virDomainSetInterfaceParameters(dom, "vnet0", networkParainfoPtr,
> > nparams,0);
> >
> > before calling this i am assigning the following Inbound values
> >
> > inbound.average = 10 (10 kbps)
> > inbound .peak = 10
> > inbound.burst = 10
>
> I suspect this way too low burst value. Try leaving the limit and it
> should work correctly.
>
> Michal
>
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