Frequency scaling survey
Dave Woyciesjes
woyciesjes at sbcglobal.net
Thu Feb 5 17:59:03 UTC 2009
Dave Woyciesjes wrote:
> Lucio M Nicolosi wrote:
>> Slim Joe wrote:
>>>>> Could some list members post the result of the
>>>>> following two commands (second "cat" command may
>>>>> break across two lines):
>>>>>
>>>>> cat /proc/cpuinfo | grep 'model name'
>>>>> cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
>>>>>
>>>>> I'm looking to upgrade my current Sempron 1.8GHz
>>>>> and am interested to find which mainstream dual-
>>>>> core processor (Intel or AMD) is most efficient
>>>>> at doing nothing. (The Atom would be too slow
>>>>> for me.)
>>>>>
>>>>> My results:
>>>>>
>>>>> model name : AMD Sempron(tm) Processor 3000+
>>>>> 1800000 1000000
>>>>>
>>>>> TIA
>> @xfx:~$ cat /proc/cpuinfo | grep 'model name'
>> model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
>> model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
>>
>> @xfx:~$ cat
>> /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
>> 2400000 2200000 2000000 1800000 1000000
>> 2400000 2200000 2000000 1800000 1000000
>>
>>
> $ cat /proc/cpuinfo | grep 'model name'
> model name : Mobile Intel(R) Pentium(R) 4 CPU 2.66GHz
>
> $ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
> 2666600 1599960
>
>
That was for my Dell Inspiron 5150 laptop. Here is my work workstation:
$ 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 Woyciesjes
--- ICQ# 905818
--- AIM - woyciesjes
--- CompTIA A+ Certified IT Tech - http://certification.comptia.org/
--- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/
"From there to here,
From here to there,
Funny things
are everywhere."
--- Dr. Seuss
More information about the ubuntu-users
mailing list