Kernel-4.18.0-80.el8_pct

  • ARC Performance Counters

The ARC700 can be configured with a pipeline performance monitor for counting
CPU and cache events like cache misses and hits. Like conventional PCT there
are 100+ hardware conditions dynamically mapped to up to 32 counters

Note that:

  • The ARC 700 PCT does not support interrupts; although HW events may be
    counted, the HW events themselves cannot serve as a trigger for a sample.

Required properties:

  • compatible : should contain
    “snps,arc700-pct”

Example:

pmu {
compatible = “snps,arc700-pct”;
};