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cpuTime -- seconds of cpu time used since Macaulay2 began

Synopsis

Usage:

cpuTime()
Outputs:
- a real number, the number of seconds of cpu time used since the program was started

Description

i1 : t1 = cpuTime()

o1 = 56.854670761

o1 : RR (of precision 53)

i2 : for i from 0 to 1000000 do 223131321321*324234324324;

i3 : t2 = cpuTime()

o3 = 57.498427717

o3 : RR (of precision 53)

i4 : t2-t1

o4 = .643756955999997

o4 : RR (of precision 53)

Caveat

Under Linux, the cpu time reported is that consumed by the thread, but under MAC OS X, it is that consumed by the process.

See also

time -- time a computation
timing -- time a computation
currentTime -- get the current time

For the programmer

The object cpuTime is a compiled function.