where shall i check the CPU temperature in command line?
my dell laptop gets hot and hot when debian run for some time. do you think it's due to cpu too busy?

Thanks.

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Hello,

cat /sys/class/thermal/thermal_zone0/temp / 1000 = °C

Work's for me on raspberry pi and Thinkpad Laptop.

Best Regards

Am 27.10.24 um 06:11 schrieb Corey:

where shall i check the CPU temperature in command line?
my dell laptop gets hot and hot when debian run for some time. do you think it's due to cpu too busy?

Thanks.

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On 10/26/24 22:11, Corey wrote:

where shall i check the CPU temperature in command line?
my dell laptop gets hot and hot when debian run for some time. do you think it's due to cpu too busy?

Thanks.

My current daily driver is a Dell PowerEdge T30 Xeon E3-1225 v5:

2024-10-27 08:28:10 root@laalaa ~
# cat /etc/debian_version ; uname -a
11.11
Linux laalaa 5.10.0-33-amd64 #1 SMP Debian 5.10.226-1 (2024-10-03)
x86_64 GNU/Linux


As suggested by another reader, I have also installed the package
"lm-sensors" to monitor hardware temperatures, etc..


I run the Xfce desktop and find it useful to install the following panel plugins:

Sensor plugin
CPU Frequency Monitor


To allow the Sensor plugin access to hard disk temperatures, I have set
the set-user-ID bit on hddtemp(8):

# chmod u+s /usr/sbin/hddtemp


I tune the Sensor plugin to display the processor temperature and to
update once per second.


Once you can monitor the processor temperature against time, take note
of how quickly the processor temperature changes when load is applied
and when load is removed. Rapid rise and fall times may indicate the
processor heat sink compound has dried out and should be re-applied.
Prolonged fall times may indicate the heat sink/ heat pipe is clogged
with dust and should be cleaned.


Linux provides a governor to control how the processor responds to
workload. The Debian package "cpufrequtils" provides utilities to
interact with the governor:

# apt-get install cpufrequtils


I can see the list of available governors with cpufreq-info(1):

2024-10-27 08:32:05 root@laalaa ~
# cpufreq-info --governors
performance powersave


So, the governor choices on this machine are "performance" and "powersave".


cpufreq-info(1) can tell me the current minimum processor frequency,
current maximum processor frequency, and the current governor:

2024-10-27 08:32:20 root@laalaa ~
# cpufreq-info -p
800000 3700000 powersave


I can make changes with cpufreq-set(1). For example, if I want performance:

2024-10-27 08:33:40 root@laalaa ~
+ cpufreq-set -g performance


I can also adjust the minimum and maximum processor frequencies (subject
to hardware limits):

2024-10-27 09:00:21 root@laalaa ~
# cpufreq-set -d 3000000

2024-10-27 09:00:30 root@laalaa ~
# cpufreq-set -u 4000000

2024-10-27 09:00:34 root@laalaa ~
# cpufreq-info -p
3000000 3700000 performance


Going the other way:

2024-10-27 09:01:35 root@laalaa ~
# cpufreq-set -g powersave

2024-10-27 09:03:10 root@laalaa ~
# cpufreq-set -d 500000

2024-10-27 09:03:20 root@laalaa ~
# cpufreq-set -u 1000000

2024-10-27 09:03:22 root@laalaa ~
# cpufreq-info -p
800000 1000000 powersave


David

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On Sun, 27 Oct 2024 09:36:32 -0700
David Christensen <dpchrist@holgerdanske.com> wrote:

To allow the Sensor plugin access to hard disk temperatures, I have
set the set-user-ID bit on hddtemp(8):

# chmod u+s /usr/sbin/hddtemp

hddtemp has been superseded by a kernel module, which you can enable
like so:

# enable getting the hard drive's temperature.
echo drivetemp > /etc/modules-load.d/drivetemp.conf

Now you can get rid of hddtemp.

I use that with xfce and the sensor plugin you mentioned.

--
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

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On 10/27/24 13:19, Charles Curley wrote:

On Sun, 27 Oct 2024 09:36:32 -0700
David Christensen <dpchrist@holgerdanske.com> wrote:

To allow the Sensor plugin access to hard disk temperatures, I have
set the set-user-ID bit on hddtemp(8):

# chmod u+s /usr/sbin/hddtemp

hddtemp has been superseded by a kernel module, which you can enable
like so:

# enable getting the hard drive's temperature.
echo drivetemp > /etc/modules-load.d/drivetemp.conf

Now you can get rid of hddtemp.

I use that with xfce and the sensor plugin you mentioned.

Thank you for the reply. :-)


David

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On 10/28/24 08:46, Timothy M Butterworth wrote:

On Sun, Oct 27, 2024 at 10:13 PM David Christensen < dpchrist@holgerdanske.com> wrote:

On 10/27/24 13:19, Charles Curley wrote:

On Sun, 27 Oct 2024 09:36:32 -0700
David Christensen <dpchrist@holgerdanske.com> wrote:

To allow the Sensor plugin access to hard disk temperatures, I have
set the set-user-ID bit on hddtemp(8):

# chmod u+s /usr/sbin/hddtemp

hddtemp has been superseded by a kernel module, which you can enable
like so:

# enable getting the hard drive's temperature.
echo drivetemp > /etc/modules-load.d/drivetemp.conf

Now you can get rid of hddtemp.

I use that with xfce and the sensor plugin you mentioned.

Thank you for the reply. :-)


David

You may want to try out the psensor program. Psensor makes graphs of CPU temperature. It has a server module that allows for remote monitoring as well.

Thank you for the reply. :-)


David

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