gistfile1.js

#! /usr/bin/node
require('nodetime').profile();

var match, params,
  async = require( "async" ),
	bunchOfGenerates = [],
	filename = "ui-icons_999999_256x240.png",
	ThemeRoller = require( "./lib/themeroller" );

// ui-icons_<color>_256x240.png
match = filename.match( /^ui-icons_(\w+)_256x240.png$/i );

if ( match == null ) {
	throw new Error( "Invalid format: " + filename );
}

params = {
	color: match[ 1 ]
};

function generate( callback ) {
	ThemeRoller.generateIcon( params, function( err, data ) {
		callback( err );
	});
}

for( var i=0; i<10000; i++ ) {
	bunchOfGenerates.push( generate );
}

async.series( bunchOfGenerates, function( err, results ) {
	if ( err ) {
		process.exit( 1 );
	}
	else {
		process.exit( 0 );
	}
});