Using inbuilt PMU for performance measurement

lyf sci

Genius 3720 points

Hi Experts,

In Linux how to use the inbuilt Performance Monitor Unit registers to measure the Cache Miss/Hit and other events ?

Does kernel contains any drivers configured or user space applications to configure and use the same ?

Regards,

Lyf

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi,
I don't have a much idea about PMU, it seems very generic linux query, do some googling to get those information.
In my opinion, CP15 register (co processor) could do some power managing, TCM memory, PMU etc.,

Please refer to the following links.

community.arm.com/.../using-the-arm-performance-monitor-unit-pmu-linux-driver
lxr.free-electrons.com/.../pmu.h
neocontra.blogspot.in/.../user-mode-performance-counters-for.html

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Using inbuilt PMU for performance measurement