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Old 01-27-2012, 02:39 AM   #1
Edward18
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CPU frequency


Hello everyone. I am trying to figure out how to get current cpu/core frequency. I know that i can use system monitor for that, but i want non-gui program. And i know that in /proc/cpuinfo stored NOT the current CPU frequency. And i need to now my CPU max frequency also. Can anyone help me with that??
P.S. I lately i have found out that not all my computers have /sys/devices/system/cpu*/cpufreq, so looking there is not an option.

Thanks in advance. Ed.
 
Old 01-27-2012, 02:51 AM   #2
ukiuki
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Have you tried conky? It also can show cpu usage and many other things.

Regards
 
Old 01-27-2012, 03:34 AM   #3
catkin
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Quote:
Originally Posted by Edward18 View Post
i know that in /proc/cpuinfo stored NOT the current CPU frequency.
Seems to be on my system (2.6.38.7 kernel). Here's a excerpt from /proc/cpuinfo:
Code:
model name	: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz
stepping	: 7
cpu MHz		: 1600.000
 
Old 01-27-2012, 03:57 AM   #4
cascade9
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lshw (cut down to the CPU bit)-

Quote:
*-cpu
description: CPU
product: AMD Phenom(tm) II X2 550 Processor
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 4
bus info: cpu@0
version: AMD Phenom(tm) II X2 550 Processor
slot: Socket M2
size: 800MHz
capacity: 3200MHz
width: 64 bits
clock: 200MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp x86-64 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save cpufreq
Its not prefect (it gives me 3200MHz as max sped, really its 3100MHz).

'Size' is the current speed (800MHz in this case)

Quote:
Originally Posted by catkin View Post
Seems to be on my system (2.6.38.7 kernel). Here's a excerpt from /proc/cpuinfo:
Code:
model name	: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz
stepping	: 7
cpu MHz		: 1600.000
Same here-

Quote:
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X2 550 Processor
stepping : 3
microcode : 0x10000af
cpu MHz : 800.000
Doesnt seem to give the max speed though.
 
Old 01-27-2012, 06:57 AM   #5
Edward18
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Thumbs up

Quote:
Originally Posted by ukiuki View Post
Have you tried conky? It also can show cpu usage and many other things.

Regards
Yeah conky is good thing, but unfortunately i can't use it in my case. I need something that i can detect cpu freq of remote computer. I know its kinda difficulte but thats what i want.
 
Old 01-27-2012, 07:02 AM   #6
Edward18
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Smile

Quote:
Originally Posted by catkin View Post
Seems to be on my system (2.6.38.7 kernel). Here's a excerpt from /proc/cpuinfo:
Code:
model name	: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz
stepping	: 7
cpu MHz		: 1600.000
Yeah right. In model name it says 3.10 GHz, i guess its your max CPU speed right???
 
Old 01-27-2012, 07:02 AM   #7
linus72
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cpufrequtils
http://www.thinkwiki.org/wiki/How_to_use_cpufrequtils

should be available for most distros
 
Old 01-27-2012, 11:53 AM   #8
salasi
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Quote:
Originally Posted by Edward18 View Post
... I know that i can use system monitor for that, but i want non-gui program...
and

Quote:
I need something that i can detect cpu freq of remote computer.
If
  • by system monitor you mean the kde system monitor (also known as kde system guard)
and
  • by remote system you mean a computer that is connected to a LAN and there is data transmission between the LAN and the monitoring computer (ie, not blocked by, eg, a firewall or one of the computers having no network connectivity)

That does not necessarily exclude kde system guard. You can run in a client/server kind of mode, where one computer just runs the display part, and the other computer runs the relatively small monitoring part. Whether this really is a sensible solution for your problem, or better than whatever else you might come up with, I really don't know, but I just wanted to mention that it might still be a possibility.

Anyway, cpufreq-info should do what you want. -f gives you just the frequency, rather than giving you several lines, which include the frequency on one of them, and c allows you to specify a core; you may have to specify, eg, core 0 and core 1 alternately, because I can't see a way of specifying *, or something, for 'give me all the cores that you've got'. (Maybe, that's only 1, which would render that point moot.) This will give you a file, and then you'll have to do something with it.

I thought that maybe collectl would do it, because that can be fairly neat, but I can't see from the man page any reference to current cpu clock.
 
Old 01-28-2012, 01:43 AM   #9
catkin
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Quote:
Originally Posted by Edward18 View Post
Yeah right. In model name it says 3.10 GHz, i guess its your max CPU speed right???
Yes -- I included in the excerpt to show that "cpu MHz" is the current frequency.
 
Old 01-29-2012, 04:07 AM   #10
Edward18
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Quote:
Originally Posted by salasi View Post
and



If
  • by system monitor you mean the kde system monitor (also known as kde system guard)
and
  • by remote system you mean a computer that is connected to a LAN and there is data transmission between the LAN and the monitoring computer (ie, not blocked by, eg, a firewall or one of the computers having no network connectivity)

That does not necessarily exclude kde system guard. You can run in a client/server kind of mode, where one computer just runs the display part, and the other computer runs the relatively small monitoring part. Whether this really is a sensible solution for your problem, or better than whatever else you might come up with, I really don't know, but I just wanted to mention that it might still be a possibility.

Anyway, cpufreq-info should do what you want. -f gives you just the frequency, rather than giving you several lines, which include the frequency on one of them, and c allows you to specify a core; you may have to specify, eg, core 0 and core 1 alternately, because I can't see a way of specifying *, or something, for 'give me all the cores that you've got'. (Maybe, that's only 1, which would render that point moot.) This will give you a file, and then you'll have to do something with it.

I thought that maybe collectl would do it, because that can be fairly neat, but I can't see from the man page any reference to current cpu clock.
Thanks, i will try this.
 
Old 01-30-2012, 01:53 AM   #11
Edward18
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Quote:
Originally Posted by salasi View Post
and



If
  • by system monitor you mean the kde system monitor (also known as kde system guard)
and
  • by remote system you mean a computer that is connected to a LAN and there is data transmission between the LAN and the monitoring computer (ie, not blocked by, eg, a firewall or one of the computers having no network connectivity)

That does not necessarily exclude kde system guard. You can run in a client/server kind of mode, where one computer just runs the display part, and the other computer runs the relatively small monitoring part. Whether this really is a sensible solution for your problem, or better than whatever else you might come up with, I really don't know, but I just wanted to mention that it might still be a possibility.

Anyway, cpufreq-info should do what you want. -f gives you just the frequency, rather than giving you several lines, which include the frequency on one of them, and c allows you to specify a core; you may have to specify, eg, core 0 and core 1 alternately, because I can't see a way of specifying *, or something, for 'give me all the cores that you've got'. (Maybe, that's only 1, which would render that point moot.) This will give you a file, and then you'll have to do something with it.

I thought that maybe collectl would do it, because that can be fairly neat, but I can't see from the man page any reference to current cpu clock.
I've tried cpufreq but it says that no or unkown cpufreq driver is active on this CPU. What am i gonna do now, do i need to install proper drivers for my CPU, or i must configure them somehow?
 
Old 01-31-2012, 01:57 AM   #12
Edward18
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Quote:
Originally Posted by catkin View Post
Yes -- I included in the excerpt to show that "cpu MHz" is the current frequency.
OK if "cpu MHz" is the current frequency, so how i can get max speed??????
 
Old 01-31-2012, 02:35 AM   #13
Edward18
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SOLVED !!!!! Now i can find my max and current speed. If anyone is interested: sudo dmidecode -t 4 | grep Max\ Speed this for max cpu speed and for current: sudo dmidecode -t 4 | grep Current\ Speed.
 
Old 01-31-2012, 11:50 AM   #14
markseger
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collectl know all!

collectl --import misc
waiting for 1 second sample...
#<------Misc------>
# UTim MHz MT Log
2 2394 0 3

you can even combine with other things:

collectl --import misc -scn
waiting for 1 second sample...
#<--------CPU--------><----------Network----------><------Misc------>
#cpu sys inter ctxsw KBIn PktIn KBOut PktOut UTim MHz MT Log
0 0 26 46 0 1 0 1 2 2394 0 3
2 2 25 31 0 1 0 1 2 2394 0 3


-mark
 
Old 02-01-2012, 06:35 AM   #15
Edward18
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Thumbs up

Quote:
Originally Posted by markseger View Post
collectl know all!

collectl --import misc
waiting for 1 second sample...
#<------Misc------>
# UTim MHz MT Log
2 2394 0 3

you can even combine with other things:

collectl --import misc -scn
waiting for 1 second sample...
#<--------CPU--------><----------Network----------><------Misc------>
#cpu sys inter ctxsw KBIn PktIn KBOut PktOut UTim MHz MT Log
0 0 26 46 0 1 0 1 2 2394 0 3
2 2 25 31 0 1 0 1 2 2394 0 3


-mark

Nice Thanks Mark.
 
  


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