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Oracle VM 3.0.3 CPU Frequency problems

919851Feb 24 2012 — edited May 5 2012
Hello!

I have 4 Cisco UCS C210 M2 servers, each with one Intel(R) Xeon(R) CPU X5675 @ 3.07GHz.
I made a cluster, with OracleVM 3.0.3.
Problem: CPU Frequency is incorrectly detected - cpu MHz : 1600.109

I've tried almost everything I could tink of (in BIOS) - update of system firmware, disable ACPI, disable SpeedStep, etc. Nothing worked.

xenpm doesn't work:
root@c1m2:~# xenpm get-cpufreq-para
[CPU0] failed to get cpufreq parameter
[...]
[CPU11] failed to get cpufreq parameter

I've tried with cpufreq=off, cpufreq=dom0-kernel, cpufreq=xen...


The strangest thing is that between reboots, two of the servers worked @ 3.06GHz, as normal.
I've rebooted one of them and it went back to 1.6GHz.
On the other server, while it was @ 3.06GHz, xenpm get-cpufreq-para worked ok.
After a reboot, this one went back to 1.6GHz too and I couldn't get them to work @ 3GHz again.

Any ideeas?

Thank you!

EDIT:
I've configured a linux VM guest, 1CPU, and compiled a kernel - 20 minutes (@ 1.6GHz). I've migrated the machine to the one running at 3.06GHz and the compile took about half of the time, so it's not just a display issue.

Edited by: 916848 on Feb 24, 2012 7:47 AM
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