multi-core CPU support

[Tim]

Tim:
>> I recently got a laptop with a multi-core CPU (Intel Core 2 Duo), so I
>> decided to have a quick look at some of the things related to that.
>>
>> I tried the CPU Frequency Scaling Monitor applet for the Gnome taskbar,
>> but it errored-out saying that it couldn't be used.  That didn't sound
>> right, so I had a look through the service configuration, and noticed
>> that the cpuspeed and irqbalance daemons were stopped, despite being set
>> to start.
>>
>> Starting them worked without any errors, so it wasn't as if they *can't*
>> be run (such as when they're set to start on a single-core system).
>> They just didn't start, for some unknown reason, when the system boots
>> up.

Dotan Cohen:
> I've got the same CPU in my Dell Inspiron. In both Fedora 6 (I could
> not install 7 on this machine) and Ubuntu Feisty, the KPowerManager
> app works fine, including CPU scaling. I don't know how to check the
> daemons, but apps that perform CPU scaling apparently work just fine.

service cpuspeed status
service irqbalance status

As far as I can tell, here, the CPU will always run at full speed if the
cpuspeed daemon isn't running.

After playing around, I see that cpuspeed is not started at boot time,
yet it is set to do so (on run levels 3, 4 & 5).  There's no error
message, it's just ignored.  But if I telinit between run levels, it
does start up.  Darned if I can see what the problem is.  The init
scripts appear to have the right permissions and contexts, there are
start scripts in the appropriate rcX.d directories.

-- 
(This computer runs FC7, my others run FC4, FC5 & FC6, in case that's
 important to the thread.)

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