Ubuntu 14.04 On Amazon EC2: Xen PV vs. HVM

[phoronix]

Phoronix: Ubuntu 14.04 On Amazon EC2: Xen PV vs. HVM

A common benchmark request at Phoronix lately has been to compare the Xen PV (para-virtualization) performance to Xen HVM (Hardware-assisted virtualization). Well, now that Ubuntu 14.04 LTS has been released, here's some benchmarks from within Amazon's EC2 compute cloud when comparing Ubuntu 14.04 Server PV and HVM instances.

http://www.phoronix.com/vr.php?view=20304

[maccam94]

Did you try repeating these tests on multiple instances of each instance type? Otherwise noisy neighbors could skew comparisons to other servers.

[workless]

It would be interesting to retry these tests on a local server

[Hohlraum]

Did you try repeating these tests on multiple instances of each instance type? Otherwise noisy neighbors could skew comparisons to other servers.

Yeah, I don't really see how these numbers could possibly be trusted unless you have full control over the host hardware.