In Linux yes, nanosecond
https://www.freepascal.org/docs-html/rtl/sysutils/gettickcount64.html
Returns milliseconds, needs microseconds
No problem
https://stackoverflow.com/questions/6749621/how-to-create-a-high-resolution-timer-in-linux-to-measure-program-performance Looks like freepascal have this in Linux unit: https://www.freepascal.org/docs-html/rtl/linux/clock_gettime.html
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