How to get Mali GPU's frequency

Hi nightskyz,

Some devices have a DVFS table in the /sys/ mali class, which lets you see all valid possible frequencies. You can then in theory change the governor, disable DVFS, and force the frequency to each of the values in the table, and test your app accordingly.

This is not Mali specific however, and down to the vendor to implement and expose, so different devices may or may not have this available to the user.

An example: On my Nexus 10 device

# cat /sys/devices/platform/mali.0/clock

Current sclk_g3d[G3D_BLK] = 450Mhz

Possible settings : 533, 450, 400, 350, 266, 160, 100Mhz

I hope that helps,

Kind Regards,

Michael McGeagh

Hi nightskyz,

Some devices have a DVFS table in the /sys/ mali class, which lets you see all valid possible frequencies. You can then in theory change the governor, disable DVFS, and force the frequency to each of the values in the table, and test your app accordingly.

This is not Mali specific however, and down to the vendor to implement and expose, so different devices may or may not have this available to the user.

An example: On my Nexus 10 device

# cat /sys/devices/platform/mali.0/clock

Current sclk_g3d[G3D_BLK] = 450Mhz

Possible settings : 533, 450, 400, 350, 266, 160, 100Mhz

I hope that helps,

Kind Regards,

Michael McGeagh

Dear Michael,

Thanks for your detailed answer

I will try it.

Thanks a lot,

Woojung