Solo emulation in 8MMINILPD4-EVK

[ko-hey]

Hi all,

How can I do solo emulation in 8MMINILPD4-EVK?

I wan to estimate single core CPU performance with 8MMINILPD4-EVK so I tried maxcpus parameter which is described in Linux Release Notes but it can't be limited the CPU numbers.

Here are my steps.

$ setenv kernelargs maxcpus=1
$ saveenv
$ boot

On the other hand, I tried disable/enable cores at kernel runtime referring following link and it success.

https://variwiki.com/index.php?title=CPU_freq_and_num_of_cores

Q1.

Could you tell me why the maxcpus parameter doesn't work ?

Q2.

Can we get same result of estimation with disabling at kernel runtime ?

Ko-hey

[joanxie · Accepted solution]

I think you should add this after mmcargs, like

"$setenv mmcargs 'setenv bootargs console=${console},${baudrate} earlycon=${earlycon},${baudrate} root=${mmcroot} maxcpus=1'
$ saveenv"

yes you can disable this in the kernel too