c3feaeaa32
high-resolution nanosecond timestamp used for the DTrace 'timestamp' built-in variable. The new implementation uses the EL0 cycle counter and frequency registers in ARMv8-A. This replaces a previous implementation that relied on an instrumentation-safe implementation of getnanotime(), which provided only timer resolution. MFC after: 3 days Reviewed by: andrew, bsdimp (older version) Useful comments appreciated: jrtc27, emaste |
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dtmalloc | ||
dtrace | ||
fbt | ||
profile | ||
sdt | ||
systrace | ||
prototype.c |