Enum perfcnt::linux::HardwareEventType [−] [src]

pub enum HardwareEventType {
    CPUCycles,
    Instructions,
    CacheReferences,
    CacheMisses,
    BranchInstructions,
    BranchMisses,
    BusCycles,
    StalledCyclesFrontend,
    StalledCyclesBackend,
    RefCPUCycles,
}

Variants

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Total cycles. Be wary of what happens during CPU frequency scaling.

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Retired instructions. Be careful, these can be affected by various issues, most notably hardware interrupt counts.

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Cache accesses. Usually this indicates Last Level Cache accesses but this may vary depending on your CPU. This may include prefetches and

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Cache misses. Usually this indicates Last Level Cache misses; this is intended to be used in conjunction with the

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Retired branch instructions. Prior to Linux 2.6.34, this used the wrong event on AMD processors.

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Mispredicted branch instructions.

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Bus cycles, which can be different from total cycles.

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Stalled cycles during issue. (Since Linux 3.0)

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Stalled cycles during retirement. (Since Linux 3.0)

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Total cycles; not affected by CPU frequency scaling. (Since Linux 3.3)