Timecmp compares execution time of two similar programs.

Installation

cargo install timecmp

cargo is Rust's package manager - see https://www.rust-lang.org/

Usage

```shell

Compare two different commands

timecmp "sleep 2" -B "python3 sleep_busy.py 2"

Compare two variants of one script, which checks whether the TIMECMP_AB

environment variable is set to "A" or "B".

timecmp "./my-script.sh" ```

It will run the two options in alternation, showing a comparison like this:

``` $ timecmp "sleep 2" -B "python3 sleepbusy.py 2" Running A: ["sleep", "2"] Running B: ["python3", "sleepbusy.py", "2"] Running A: ["sleep", "2"] Running B: ["python3", "sleepbusy.py", "2"] Running A: ["sleep", "2"] Running B: ["python3", "sleepbusy.py", "2"]

Elapsed time: A: 2.002s ███████████████████████████████████████ B: 2.051s ████████████████████████████████████████ A: 2.003s ███████████████████████████████████████ B: 2.040s ███████████████████████████████████████▊ A: 2.001s ███████████████████████████████████████ B: 2.047s ███████████████████████████████████████▉

CPU time: A: 1.431ms
B: 2.037s ███████████████████████████████████████▉ A: 2.544ms
B: 2.032s ███████████████████████████████████████▊ A: 749.000µs
B: 2.042s ████████████████████████████████████████ ```