AW: [Xen-users] which governor for cpufreq?

[Carsten Schiers <carsten@xxxxxxxxxx>]

Re-Hi,

with that CPU you should have no problems with Xen-internal cpufreq management. 
This
would be - as you might know - switched on by providing cpufreq=xen in the Xen 
line
of grub. 

The provided ondemand governor will recognize the complete load of the system, 
what
you can easily test by createing load with e.g. bzip2 in a DomU. You'll see 
that your
CPU will certainly step up. With your CPU, you might have problems to create 
the load,
though ;-).

BR,
Carsten.

----- Originalnachricht -----
Von: Christoph Kaminski <mangel@xxxxxx>
Gesendet: Die, 14.7.2009 00:47
An: xen-users@xxxxxxxxxxxxxxxxxxx
Betreff: [Xen-users] which governor for cpufreq?

Hi!

What a cpufreq governor does make sense? (someone says ondemand doesnt 
make sense because it 'see' only the dom0 demand)

System is an i7 with cpufreq in hypervisor

Greetz

PS: Sorry for my english

xenpm get-cpufreq-para 
 

cpu id               : 0 
 

affected_cpus        : *0 1 2 3 4 5 6 7 
 

cpuinfo frequency    : max [2661000] min [1596000] cur [1596000] 
 

scaling_driver       : acpi-cpufreq 
 

scaling_avail_gov    : userspace performance powersave ondemand 
 

current_governor     : ondemand 
 

   ondemand specific  : 
 

     sampling_rate    : max [10000000] min [10000] cur [20000] 
 

     up_threshold     : 80 
 

scaling_avail_freq   : 2661000 2660000 2527000 2394000 2261000 2128000 
1995000 1862000 1729000 *1596000 

scaling frequency    : max [2661000] min [1596000] cur [1596000]

.
.
.

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