Hi Michal,
Thanks for the analysis, please find the interface details of the dumpxml $dom
<interface type='network'>
<mac address='52:54:00:4f:8d:cd'/>
<source network='default'/>
<target dev='vnet0'/>
<bandwidth>
<inbound average='10'/>
</bandwidth>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
Regards,
Vikrant
On Fri, May 31, 2013 at 2:58 PM, Michal Privoznik <mprivozn@xxxxxxxxxx> wrote:
On 31.05.2013 07:05, vikrant verma wrote:
> Hello Michal,
>
> Throttling is working now after setting inbound.average = 10 (i haveI don't think so. So your other values are set to 0? Can you share the actual <bandwidth/> element from 'virsh dumxpl $dom'?
> 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?
>
However, I might be hitting the same issue:
# tc -s class show dev vnet0
class htb 1:1 root leaf 2: prio 0 rate 80000bit ceil 80000bit burst 1600b cburst 1600b
Sent 5146972 bytes 3540 pkt (dropped 0, overlimits 0 requeues 0)
rate 536752bit 45pps backlog 0b 4p requeues 0
lended: 359 borrowed: 0 giants: 0
tokens: -937499999 ctokens: -937499999
class sfq 2:36c parent 2:
(dropped 0, overlimits 0 requeues 0)
backlog 103018b 4p requeues 0
allot 1520
We can see both rate and ceil being 80kbit however the current rate being 536kbit. I wonder what's going on and how to fix this.
> Regards,
> Vikrant
Michal
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