Monday Jun 30, 2008

Results of Power Management

I've put Gregg's blog on Power Management to use, and here are my impressive results.

[Read More]

Wednesday Jun 25, 2008

Some Power Management

There is some limited support for power management in OpenSolaris 2008.05, but by default it is not enabled (hopefully that will change in a future release).  There is an entry on the BigAdmin wiki page that describes the supported CPUs (from both Intel and AMD) and the simple steps for modifying the /etc/power.conf file.  But this blog entry from Mark Haywood provides quite a bit more information.  In it, he describes the CPU frequency scaling feature in detail. The feature slows the CPU when idle, so that the chip uses less power and generates less heat.

To follow his instructions, all I had to do was enter this at a command line:

   $ pfexec gedit /etc/power.conf

I added two lines to the end of /etc/power.conf:

   cpupm enable
   cpu-threshold 15s

Saved the file and then ran this command:

   $ pmconfig

And now OpenSolaris 2008.05 is happily slowing down my CPU when it is idle. 

About

The Observatory is a blog for users of Oracle Solaris. Tune in here for tips, tricks and more as we explore the Solaris operating system from Oracle.

Connect with Oracle Solaris:


Search

Archives
« April 2014
SunMonTueWedThuFriSat
  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
   
       
Today