Frequency scaling survey

[Lucio M Nicolosi]

Dave Woyciesjes wrote:
> 	Maybe I need to re-phrase. As seen below, I tried to offer info on my 
> workstation. The first command returned info as expected, but the second 
> command came back with nothing.
> 	Given my lack of knowledge in the kernel/cpu arena, I haven't been able 
> to find an explanation, or fix. Anybody got any tips?
>
> Dave Woyciesjes wrote:
>   
>> $ cat /proc/cpuinfo | grep 'model name'
>> model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
>> model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
>>
>> $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
>> cat: /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies: 
>> No such file or directory
>>
>> $ cd /sys/devices/system/cpu/
>> /sys/devices/system/cpu$ ls -al
>> total 0
>> drwxr-xr-x  5 root root    0 2009-02-05 12:54 .
>> drwxr-xr-x 10 root root    0 2009-02-05 12:54 ..
>> drwxr-xr-x  4 root root    0 2009-02-05 12:54 cpu0
>> drwxr-xr-x  4 root root    0 2009-02-05 12:54 cpu1
>> drwxr-xr-x  2 root root    0 2009-02-05 12:54 cpuidle
>> -rw-r--r--  1 root root 4096 2009-02-05 12:55 sched_mc_power_savings
>>     
>  >
>   
>> /sys/devices/system/cpu$ cd cpu0
>> /sys/devices/system/cpu/cpu0$ ls -al
>> total 0
>> drwxr-xr-x 4 root root    0 2009-02-05 12:54 .
>> drwxr-xr-x 5 root root    0 2009-02-05 12:54 ..
>> drwxr-xr-x 5 root root    0 2009-02-05 12:55 cache
>> -r-------- 1 root root 4096 2009-02-05 12:55 crash_notes
>> drwxr-xr-x 2 root root    0 2009-02-05 12:55 topology
>>     
>  >
>   
>> /sys/devices/system/cpu/cpu0$
>>
>> No I'm not a programmer. Now what?
Dave,

For me it looks pretty much the same, but I'm probably missing something:

L.

@-xfx:~$ cd /sys/devices/system/cpu/

@-xfx:/sys/devices/system/cpu$ ls -al

total 0
drwxr-xr-x  5 root root    0 2009-02-08 11:32 .
drwxr-xr-x 10 root root    0 2009-02-08 11:32 ..
drwxr-xr-x  5 root root    0 2009-02-08 11:32 cpu0
drwxr-xr-x  4 root root    0 2009-02-08 13:33 cpu1
drwxr-xr-x  2 root root    0 2009-02-08 13:34 cpuidle
-r--r--r--  1 root root 4096 2009-02-08 13:34 online
-r--r--r--  1 root root 4096 2009-02-08 13:34 possible
-r--r--r--  1 root root 4096 2009-02-08 13:34 present
-rw-r--r--  1 root root 4096 2009-02-08 13:34 sched_mc_power_savings

@xfx:/sys/devices/system/cpu$ cat  
/sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies

2400000 2200000 2000000 1800000 1000000
2400000 2200000 2000000 1800000 1000000

@-xfx:/sys/devices/system/cpu$ cd cpu0
@-xfx:/sys/devices/system/cpu/cpu0$ ls -al
total 0
drwxr-xr-x 5 root root    0 2009-02-08 11:32 .
drwxr-xr-x 5 root root    0 2009-02-08 11:32 ..
drwxr-xr-x 5 root root    0 2009-02-08 13:34 cache
drwxr-xr-x 4 root root    0 2009-02-08 13:41 cpufreq
-r-------- 1 root root 4096 2009-02-08 13:34 crash_notes
drwxr-xr-x 2 root root    0 2009-02-08 13:34 topology


-- 
Lucio M. Nicolosi, Eng.
São Paulo - Brazil
Lat.:  23°34'4.79"S
Long.: 46°39'59.53"W

email: lmnicolosi at gmail.com
skype: lmnicolosi1

Linux Registered User #481505
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