PROJECT IN PROGRESS - NOT FOR USE

Wall-clock Time Measurement library (WTMLIB)

^{Port with some modification of the WTMLIB.}
Library supported architectures: amd64, arm.

The library allows measuring wall-clock time intervals with nanosecond precision and very low overhead (also at nanosecond scale).

To achieve this the library uses Time Stamp Counter (TSC) and ticks conversion to nanoseconds by means of fast division-free integer arithmetic.

Note

Time Stamp Counter (TSC) - in this project this name means special microprocessor counter. The counter is called differently on different architectures:

• time-stamp counter on amd64
• time base register on PowerPC
• interval time counter on Itanium

end etc

Note

If target's CPU manufacturer is Intel, recommended take a closer look at Intel Processor Trace

User guide

The most typical scenario is the following:

TODO: https://habr.com/ru/articles/425237/#comment_19197483