Regarding the 2 CPUs of NanoPC T4

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iono
Posts: 11
Joined: Sat Feb 11, 2017 7:51 am

Regarding the 2 CPUs of NanoPC T4

Post by iono »

I don't have this device, but the NanoPC T4 has 2 CPUs which are Dual-Core Coretex-A72 and Quad-Core Cortex-A53. I never use a computer that has 2 CPUs, so how does an operating system manage the CPUs?

When will a process use the weaker/stronger CPU?

What are the criteria the operating system decide which goes where?

Can a process use both CPU at the same time?

Is it possible to force a process to use only the weaker/stronger CPU?
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trendy
Posts: 133
Joined: Tue Feb 25, 2020 2:54 pm

Re: Regarding the 2 CPUs of NanoPC T4

Post by trendy »

RockPi4 also has this combination of CPUs.
From dietpi-services menu you can select which service will use which cpu and how many cores.
By default any service can use all available CPUs.
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