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[Xen-devel] Xen 3.4 / cpufreq=dom0-kernel / ondemand govenor doesn't ste

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Xen 3.4 / cpufreq=dom0-kernel / ondemand govenor doesn't step
From: "Carsten Schiers" <carsten@xxxxxxxxxx>
Date: Thu, 28 May 2009 21:49:41 +0200
Cc: "jinsong.liu" <jinsong.liu@xxxxxxxxx>
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I have just upgraded to Xen 3.4 and its kernel. I use 
cpufreq=dom0-kernel. I set
the governor to ondemand. In the same setting as Xen 3.3.1 it now 
doesn't step
upwards, even when I create heavy load. Transistion table demonstrates 
that:

data://sys/devices/system/cpu/cpu0/cpufreq/stats# cat trans_table
   From  :    To
         :   2100000   2000000   1800000   1000000
  2100000:         0         0         0         2
  2000000:         0         0         0         0
  1800000:         0         0         0         0
  1000000:         1         0         0         0

after an uptime of 30 minutes. The steps shown here came from a manual 
setting
whilst I set the governor back to userspace. Any idea how to check 
further? 

Does http://xenbits.xensource.com/xen-unstable.hg?rev/674e4d43955f make 
any
difference in my case? As said, I used the tarballs. 

And by the way: what is the actual xen-3.4 testing, I am a bit lost on 
the website.

BR,
Carsten.


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