Return Process CPU and real time that an expression used.
system_time(expr)
expr | A expression to be timed. |
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A bench_time object with two values.
process
- The process CPU usage of the expression evaluation.
real
- The wallclock time of the expression evaluation.
On some systems (such as macOS) the process clock has lower precision than the realtime clock, as a result there may be cases where the process time is larger than the real time for fast expressions.
#> process real #> 63.9µs 500.6ms