timer-discrepancy-title-panda-crazy.user.js

// ==UserScript==
// @name         Panda Crazy Timer Discrepancy In Title
// @namespace    salembeats
// @version      2.5
// @description  Timer descrepancy test to demonstrate background tab timer throttling. Runs on TurkerHub and displays results in the tab's title bar.
// @author       Cuyler Stuwe (salembeats)
// @include      http*://worker.mturk.com/?filters[search_term]=pandacrazy=on*
// @include      http*://worker.mturk.com/requesters/PandaCrazy/projects*
// @include      http*://worker.mturk.com/?PandaCrazy*
// @include      http*://worker.mturk.com/?end_signin=1&filters%5Bsearch_term%5D=pandacrazy%3Don*
// @icon         https://i.imgur.com/snRSm80.gif
// @grant        none
// ==/UserScript==

var INTERVAL_TIME = 700;

var lastTimestamp;
var mostRecentTimestamp;
var lastGap;

setInterval(() => {
    lastTimestamp = mostRecentTimestamp;
    mostRecentTimestamp = performance.now();

    if(lastTimestamp !== undefined && mostRecentTimestamp !== undefined) {
        lastGap = mostRecentTimestamp - lastTimestamp;
        let deviationAmount = Math.abs(INTERVAL_TIME - lastGap);
        let deviationPercentage = (deviationAmount / INTERVAL_TIME) * 100;
        document.title = `PC (${deviationPercentage.toLocaleString("EN", {maximumFractionDigits: 0})}% lag) [${INTERVAL_TIME}ms]`;
    }
}, INTERVAL_TIME);