A Julia package for measuring elapsed CPU time in Julia.
You should only use this package if you know what you're doing - CPU time on multi-core processors is a tricky beast. Please at least read the discussion in Issue #1 before proceeding. Once you've done that, to install call:
Pkg.add("CPUTime")
from the Julia command line.
The exported functions and macros, as well as their absolute time equivalents, are listed in the following table.
| Real time (Julia standard library) | CPU time (CPUTime.jl) |
|---|---|
| time_ns() | CPUtime_us() |
| tic() | CPUtic() |
| toq() | CPUtoq() |
| toc() | CPUtoc() |
| @time | @CPUtime |
| @elapsed | @CPUelapsed |
Note that the finest resolution for CPU time is microseconds, as opposed to nanoseconds for absolute time.
using CPUTime
function add_and_sleep()
x = 0
for i in 1:10_000_000
x += i
end
sleep(1)
x
end
@time @CPUtime add_and_sleep()elapsed CPU time: 0.000174 seconds
1.005624 seconds (32 allocations: 1.109 KiB)
50000005000000