Provides the number of elapsed milliseconds since an arbitrary reference time in the past. The reference time will be the same for a given session, but may differ between sessions.
mclock()A double.
A convenience function for building concurrent applications. The
resolution of the clock depends on the underlying system timing facilities
and may not be particularly fine-grained. This utility should however be
faster than using Sys.time().
time <- mclock(); msleep(100); mclock() - time
#> [1] 102