Virtualization - network latency
Hi, the SAGE consultant was noticing the network latency on the "internal switch". He did not like VirtualBox + FreeBSD for that matter (I don't blame him - it was the first "get something up" quickly" configuration). Here the values: --- SageApp.vv.fda ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.308/0.635/1.364/0.319 ms It did not change much when moving to another network card (following David Lutz' recommendation: https://dlutzy.wordpress.com/2012/04/23/performance-problem-with-virtualbox/ ) However, there is a Windows box on the Oracle VM Server running, and here I have: --- SageWindows.vv.fda ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9002ms rtt min/avg/max/mdev = 0.554/0.605/0.646/0.037 ms So the average is not much different but the variance higher. However, he says, he sees typical 0.15 ms values on his PC with VMware Workstation. I wonder whether someone can share thoughts and experience about it (and other performance values). I found this interesting too: https://www.duo.uio.no/handle/10852/34900 I will take some time to play with various setups in the near future. Regards Peter
Here are the results of KVM and LXC based virtual machines on Ubuntu 14.04.. Both look a fair bit better than the results you're seeing. --- LXC ping from VM host --- 10 packets transmitted, 10 received, 0% packet loss, time 9000ms rtt min/avg/max/mdev = 0.042/0.050/0.074/0.009 ms --- LXC ping from elsewhere on network --- 10 packets transmitted, 10 received, 0% packet loss, time 8998ms rtt min/avg/max/mdev = 0.167/0.217/0.326/0.048 ms --- KVM ping from VM host --- 10 packets transmitted, 10 received, 0% packet loss, time 9002ms rtt min/avg/max/mdev = 0.188/0.306/0.402/0.057 ms --- KVM ping from elsewhere on network --- 10 packets transmitted, 10 received, 0% packet loss, time 9000ms rtt min/avg/max/mdev = 0.263/0.370/0.459/0.067 ms On 5 February 2015 at 12:27, Peter Ross <Petros.Listig@fdrive.com.au> wrote:
Hi,
the SAGE consultant was noticing the network latency on the "internal switch". He did not like VirtualBox + FreeBSD for that matter (I don't blame him - it was the first "get something up" quickly" configuration).
Here the values:
--- SageApp.vv.fda ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.308/0.635/1.364/0.319 ms
It did not change much when moving to another network card (following David Lutz' recommendation: https://dlutzy.wordpress.com/2012/04/23/performance-problem-with-virtualbox/ )
However, there is a Windows box on the Oracle VM Server running, and here I have:
--- SageWindows.vv.fda ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9002ms rtt min/avg/max/mdev = 0.554/0.605/0.646/0.037 ms
So the average is not much different but the variance higher.
However, he says, he sees typical 0.15 ms values on his PC with VMware Workstation.
I wonder whether someone can share thoughts and experience about it (and other performance values).
I found this interesting too:
https://www.duo.uio.no/handle/10852/34900
I will take some time to play with various setups in the near future.
Regards Peter
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On 5/02/2015 11:57 am, Peter Ross wrote:
Hi,
the SAGE consultant was noticing the network latency on the "internal switch". He did not like VirtualBox + FreeBSD for that matter (I don't blame him - it was the first "get something up" quickly" configuration).
What problem is the SAGE consultant trying to fix ? In general I see nothing wrong with any of those numbers. Mike
participants (3)
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Mike O'Connor -
Peter Ross -
Toby Corkindale