table of contents
FUNCTION::CPU_CLOCK_(3stap) | Timestamp Functions | FUNCTION::CPU_CLOCK_(3stap) |
NAME¶
function::cpu_clock_ns - Number of nanoseconds on the given cpu's clock
SYNOPSIS¶
cpu_clock_ns:long(cpu:long)
ARGUMENTS¶
cpu
Which processor's clock to read
DESCRIPTION¶
This function returns the number of nanoseconds on the given cpu's clock. This is always monotonic comparing on the same cpu, but may have some drift between cpus (within about a jiffy).
SEE ALSO0¶
tapset::timestamp_monotonic(3stap)
October 2018 | SystemTap Tapset Reference |