- if profile --nmi kernel uses NMI watchdog based sampling based on Intel architecture performance counters - using NMI makes kernel profiling possible - watchdog kernel lockup detection is disabled while sampling as we may get unpredictable interrupts in kernel and thus possibly many false positives - if watchdog is not enabled at boot time, profiling enables it and turns it of again when done |
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|---|---|---|
| .. | ||
| arch_clock.h | ||
| arch_proto.h | ||
| arch_smp.h | ||
| arch_watchdog.h | ||
| archconst.h | ||
| hw_intr.h | ||