README.md

ShellJS Benchmarks

Collection of benchmarks for ShellJS

Note: benchmark results will be moving to Github Pages - stay tuned.

This is a comparison of ShellJS and bash for performance. Each test case runs scripts with equivalent output and compares Bash's runtime with ShellJS's. Surprisingly, ShellJS is often the winner, sometimes being up to 12x faster! Woohoo! See below for ShellJS performance wins.

Results

ShellJS performance wins

• echoIntoFile
• ls10k
• touchSyntax0.6

System Information:

• Linux

• 4.2.0-30-generic

• x64

• Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz × 4

Node information

• Node.js: v5.3.0

• V8: 4.6.85.31

Shell Information:

• name: /bin/bash

• version: GNU bash, version 4.3.42(1)-release (x86_64-pc-linux-gnu) Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software; you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

echoIntoFile

• Bash took 842 milliseconds

• ShellJS 0.5.3 took 252 milliseconds

• ShellJS 0.6.0 took 270 milliseconds

• ShellJS latest took 178 milliseconds

ShellJS was 4.730 times faster than Bash

envVariable

• Bash took 314 milliseconds

• ShellJS 0.5.3 took 281 milliseconds

• ShellJS 0.6.0 took 293 milliseconds

• ShellJS latest took 618 milliseconds

Bash was 1.968 times faster than ShellJS

forLoopAlternateSyntax

• Bash took 91 milliseconds

• ShellJS 0.5.3 took 184 milliseconds

• ShellJS 0.6.0 took 185 milliseconds

• ShellJS latest took 235 milliseconds

Bash was 2.582 times faster than ShellJS

helloworld

• Bash took 84 milliseconds

• ShellJS 0.5.3 took 195 milliseconds

• ShellJS 0.6.0 took 175 milliseconds

• ShellJS latest took 175 milliseconds

Bash was 2.083 times faster than ShellJS

helloworld10k

• Bash took 208 milliseconds

• ShellJS 0.5.3 took 326 milliseconds

• ShellJS 0.6.0 took 264 milliseconds

• ShellJS latest took 760 milliseconds

Bash was 3.654 times faster than ShellJS

ls10k

• Bash took 10334 milliseconds

• ShellJS 0.5.3 took 690 milliseconds

• ShellJS 0.6.0 took 748 milliseconds

• ShellJS latest took 1115 milliseconds

ShellJS was 9.268 times faster than Bash

pwd10k

• Bash took 632 milliseconds

• ShellJS 0.5.3 took 1625 milliseconds

• ShellJS 0.6.0 took 2343 milliseconds

• ShellJS latest took 6133 milliseconds

Bash was 9.704 times faster than ShellJS

touchSyntax0.6

• Bash took 1392 milliseconds

• Skipping test for ShellJS 0.5.3

• ShellJS 0.6.0 took 270 milliseconds

• ShellJS latest took 465 milliseconds

ShellJS was 2.994 times faster than Bash