Latency VM

[netbat]

Hi all,
Sorry for my english , it's not my prefere language
i have latency problem with my VMs,
on Proxmox i send ping to google, i have approximatively 5ms
in the same time , i send the same command from my VM , i have sometimes 1000 ms
i have this problem on all my VM
I use Proxmox 4.3 and my VM is on Centos
Do you have any idea ?

 

[manu]

I've never heard or experimented such a discrependancy, but here's some thing things you might look:
* are you using VirtIO drivers in your VMs ?
* is your network the default bridge mode ? If yes do you have a high cpu load on the host related to the bridge ?

 

[netbat]

Hi Manu,
Thank for you answer.
* Yes i use VirtIO drivers in all VMs
*Yes i am in bridge mode, The CPU is use at 15% , with Load Average at 3 , and we have 8 x Intel Xeon

Other idea ?

 

[manu]

maybe with traceroute -n you can find out at which point is the latency going high

 

[netbat]

i think not is route problem, because Proxmox ping the same destination in the same time and the latency is correct