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function::cpu_clock_ns(3stap) — Linux manual page

FUNCTION...U_CLOCK_(3stap) Timestamp FunctionsFUNCTION...U_CLOCK_(3stap)

NAME        top

       function::cpu_clock_ns - Number of nanoseconds on the given cpu's       clock

SYNOPSIS        top

           cpu_clock_ns:long(cpu:long)

ARGUMENTS        top

cpu           Which processor's clock to read

DESCRIPTION        top

       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 ALSO        top

tapset::timestamp_monotonic(3stap)

COLOPHON        top

       This page is part of thesystemtap (a tracing and live-system       analysis tool) project.  Information about the project can be       found at ⟨https://sourceware.org/systemtap/⟩.  If you have a bug       report for this manual page, send it to systemtap@sourceware.org.       This page was obtained from the project's upstream Git repository       ⟨git://sourceware.org/git/systemtap.git⟩ on 2025-08-11.  (At that       time, the date of the most recent commit that was found in the       repository was 2025-07-24.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgSystemTap Tapset Reference      April 2025FUNCTION...U_CLOCK_(3stap)

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