Tomasz Chmielewski wrote:
Is using cpufreq (i.e. with ondemand governor) on KVM host safe for
guests?
I enabled cpufreq on the host, it scaled down the host CPU (Dual-Core
AMD Opteron(tm) Processor 2212) to 1 GHz from 2 GHz.
Not with your processor. Intel processors should be fine and any AMD
processor that's Barcelona/Phenom or newer.
Regards,
Anthony Liguori
Guest (using 1 CPU) was still showing that it has a 2 GHz CPU in
/proc/cpuinfo (I guess this value is read only once, when booting).
After about 2 hours I started "date" on the guest - it showed that
it's year *1953*, after which I couldn't start any other command (the
guest was technically alive - SSH connection to it didn't die - but I
couldn't do anything).
# date
Wed Feb 18 13:07:17 CET 2009
[let's wait ~2 hours]
# date
Fri May 15 10:13:14 CET 1953
# date
^C^Z
[could not interrupt]
Is it expected behaviour? Is it correct behaviour?
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