setTimeLimit(cpu = Inf, elapsed = Inf, transient = FALSE)
setSessionTimeLimit(cpu = Inf, elapsed = Inf)TRUE, the limits apply only to
the rest of the current computation.setTimeLimit sets limits which apply to each top-level
computation, that is a command line (including any continuation lines)
entered at the console or from a file. If it is called from within a
computation the limits apply to the rest of the computation and
(unless transient = TRUE) to subsequent top-level computations. setSessionTimeLimit sets limits for the rest of the
session. Once a session limit is reached it is reset to Inf.
Setting any limit has a small overhead -- well under 1% on the systems measured.
Time limits are checked whenever a user interrupt could occur.
This will happen frequently in R code and during Sys.sleep,
but only at points in compiled C and Fortran code identified by the
code author.
unix
‘Total cpu time’ includes that used by child processes where the latter is reported.