Question

I’d like to benchmark a PHP script, but this would equally apply to anything that can be run from the command line.

Using bash is there a simple way to benchmark a script, i.e. run a command multiple times and time how long it takes?

Answer 1

In command line, you can:

$ time php foobar.php

Here time is a bash built-in.

For multiple runs:

$ time for a in {1..10}; do php foobar.php; done
real    0m13.042s
user    0m0.021s
sys     0m0.044s

However, you need to calculate the average time by hand.