CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

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sagsaw
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CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

Post by sagsaw »

I have a machine with Intel Pentium Dual Core T4500 processor.

Installed Linux mint 19.3 but am unable to see which CPU scheduler it is using as the does not have cpufreq. So I am unable to change it also.

Does intel processor use another driver for it?
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Kadaitcha Man
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Re: CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

Post by Kadaitcha Man »

sagsaw wrote:
Wed Jan 08, 2020 7:22 am
Installed Linux mint 19.3 but am unable to see which CPU scheduler it is using as the does not have cpufreq.
sudo cat /sys/block/<DEVICE>/queue/scheduler

Presumably <DEVICE> for you is sda.

To change it, you need to set up some complex udev rules.
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JOPETA
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Re: CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

Post by JOPETA »

Which desktop?

In Xfce you can install xfce4-cpufreq-plugin in the panel for that also in Mate there's CPU Frequency Scaling Monitor or you can install specifics tools for that in repository as cpufrequtils (look at this by example) and out there. :roll:

Try cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor to see.

If pstate is installed (check with cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver) so governors would be performance and powersave (check it with cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors) and are scaled dynamically. You can change the governor for each CPU or all of them from terminal

Code: Select all

sudo su
for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "performance" > $file; done
exit
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sagsaw
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Re: CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

Post by sagsaw »

Kadaitcha Man wrote:
Thu Jan 09, 2020 2:12 am
sagsaw wrote:
Wed Jan 08, 2020 7:22 am
Installed Linux mint 19.3 but am unable to see which CPU scheduler it is using as the does not have cpufreq.
sudo cat /sys/block/<DEVICE>/queue/scheduler

Presumably <DEVICE> for you is sda.

To change it, you need to set up some complex udev rules.
I was looking for CPU Scheduler not the IO Scheduler.
sagsaw
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Re: CPUFREQ CPU Scheduler Intel Pentium Dual Core T4500 processor

Post by sagsaw »

JOPETA wrote:
Thu Jan 09, 2020 2:09 pm
Which desktop?

In Xfce you can install xfce4-cpufreq-plugin in the panel for that also in Mate there's CPU Frequency Scaling Monitor or you can install specifics tools for that in repository as cpufrequtils (look at this by example) and out there. :roll:

Try cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor to see.

If pstate is installed (check with cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver) so governors would be performance and powersave (check it with cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors) and are scaled dynamically. You can change the governor for each CPU or all of them from terminal

Code: Select all

sudo su
for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "performance" > $file; done
exit
Well in my case there is no cpufreq in the cpu0 or cpu1 directory ... cat /sys/devices/system/cpu/cpu*/

How do you know if CPUFREQ is in use or pstate is in use?
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