Hello Guenter,

On 04/07/2015 09:22 PM, Guenter Roeck wrote:

Hi Cedric,

On Tue, Apr 07, 2015 at 08:03:46PM +0200, Cedric Le Goater wrote:

quoted

on a P7  :

	# ppc64_cpu --info
	Core   0:    0*    1*    2*    3* 
	Core   1:    4*    5*    6*    7* 
	Core   2:    8*    9*   10*   11* 
	Core   3:   12*   13*   14*   15* 
	Core   4:   16*   17*   18*   19* 
	Core   5:   20*   21*   22*   23* 

How would the 'sensors' output look like on that system ?
Wouldn't it be something like the following ?

 	Core 0-7:    +29.0°C  
 	Core 4-11:   +29.0°C  

yep. 

quoted

quoted

Also, how do you know that the range of CPU IDs is always 8 ?

This is a shortcut. The code is for the ibmpowernv platform and assumes 
that we are running on a P8 (8 hardware threads). It would be better to 
use a "maximum threads per core" variable but I am not sure this is 
available, as it is a tunable. I will look into it.

Tunable how ? 

You can switch on and off threads.

The core code must have some means to detect this number when it initialized 
CPU entries, or am I missing something ?

threads_per_core is what the code needs. v3 is on its way.

Thanks !

C.