Gecko [ primetaxinc.net ]

Name	Size	Permission
.travis.yml	126 B	-rw-r--r--
CHANGELOG.md	1.78 KB	-rw-r--r--
LICENSE	765 B	-rw-r--r--
README.md	2.03 KB	-rw-r--r--
gen-changelog.sh	238 B	-rw-r--r--
lockfile.js	8.22 KB	-rw-r--r--
package.json	1.69 KB	-rw-r--r--
sockets.md	700 B	-rw-r--r--
speedtest.js	1.35 KB	-rw-r--r--

Code Editor : speedtest.js

const path = require('path');
const async = require('async');
const lf = require('lockfile');
const fs = require('fs');

const n = +process.argv[3] || 300;
const a = Array.apply(null, {length: n}).map(function(_, i) {
  return i
})
const file = path.resolve(__dirname, 'speed-test.lock');

try{
    fs.unlinkSync(file);
}
catch(e){}

/// NOTE: this should run in about 30ms on a SSD Ubuntu 16.04, that is fast, because we are locking/unlocking 300 locks
/// *HOWEVER* if we change async.eachSeries to async.each, lockfile will barf immediately, and I can't get lockfile
/// to not barf, using any of the options {} available to lockfile#lock.

const parallel = process.argv[2] === 'parallel';

var fn, msg;

if(parallel){
    msg = 'parallel';
    fn = async.each;
}
else{
    msg = 'series';
    fn = async.eachSeries;
}

const start = Date.now();
console.log(' => locking/unlocking ' + a.length + ' times, in ' + msg);

fn(a, function (val, cb) {

console.log('try %d', val)

lf.lock(file, { retries: n * 3 }, function (err) {
        if (err) {
            cb(err);
        }
        else {
            console.log('complete %d', val)
            lf.unlock(file, cb);
        }
    });

}, function complete(err) {

if (err) {
        throw err;
    }

console.log(' => Time required for lockfile => ', Date.now() - start, 'ms');
    process.exit(0);

});

${this.title}

Code Editor : speedtest.js