Performance of minimatch - .match() versus precompiled .makeRe()

benches.js

var minimatch = require('minimatch')


var step = 1000000
var i


var match = 'foo'
var negate = '!foo'
var other = 'bar'


var re = minimatch.makeRe(match)
var negateRe = minimatch.makeRe(negate)


var benches = {

	'match found': function () {
		return minimatch(match, match)
	},

	're match found': function () {
		return match.match(re)
	},

	're exec found': function () {
		return re.exec(match)
	},

	'match not found': function () {
		return minimatch(other, match)
	},

	're match not found': function () {
		return other.match(re)
	},

	're exec not found': function () {
		return re.exec(other)
	},

	'negated match found': function () {
		return minimatch(match, negate)
	},

	'negated re match found': function () {
		return match.match(negateRe)
	},

	'negated re exec found': function () {
		return negateRe.exec(match)
	},

	'negated match not found': function () {
		return minimatch(other, negate)
	},

	'negated re match not found': function () {
		return other.match(negateRe)
	},

	'negated re exec not found': function () {
		return negateRe.exec(other)
	}

}


for ( var bench in benches ) {

	i = step

	console.time( bench )

	while ( i-- ) {
		benches[ bench ]()
	}

	console.timeEnd( bench )

}

Results

match found: 1566ms
re match found: 77ms
re exec found: 72ms
match not found: 1499ms
re match not found: 51ms
re exec not found: 40ms
negated match found: 1647ms
negated re match found: 49ms
negated re exec found: 43ms
negated match not found: 1527ms
negated re match not found: 79ms
negated re exec not found: 73ms