Created
October 29, 2018 10:05
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This is an incomplete snippet - idea is to use greasemonky to measure the pageloadtime
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// With GreaseMonkey create a new script that would look like the following: | |
// ==UserScript== | |
// @name test | |
// @description test desc | |
// @include *://www.mysite.com/* | |
// @grant none | |
// @version 0.1 | |
// ==/UserScript== | |
// (function() { | |
// document.addEventListener("DOMContentLoaded", function(event) { | |
// console.log("DOM fully loaded and parsed"); | |
// // Your code should be here. | |
// }); | |
// })(); | |
/* | |
* This is a JavaScript Scratchpad. | |
* | |
* Enter some JavaScript, then Right Click or choose from the Execute Menu: | |
* 1. Run to evaluate the selected text (Ctrl+R), | |
* 2. Inspect to bring up an Object Inspector on the result (Ctrl+I), or, | |
* 3. Display to insert the result in a comment after the selection. (Ctrl+L) | |
*/ | |
function KPI(key, value) { | |
this.key = key; | |
this.value = value; | |
} | |
function right(foo) | |
{ | |
var s = foo.toString(); | |
var lastFive = s.substring(s.length - 4); | |
return lastFive; | |
} | |
function getPerformanceTimings() | |
{ | |
var t = window.performance.timing; | |
var timings = []; | |
timings.push(["navigationStart", t.navigationStart, right(t.navigationStart) ] ); | |
timings.push(["connectStart", t.connectStart, right(t.connectStart) ] ); | |
timings.push(["requestStart", t.requestStart, right(t.requestStart)] ); | |
timings.push(["responseEnd", t.responseEnd, right(t.responseEnd) ] ); | |
timings.push(["PageLoadTime", ( t.loadEventEnd - t.navigationStart), 0 ] ); | |
// timings.push("navigationStart: " + t.navigationStart ); | |
// timings.push("responseEnd: " + t.responseEnd ); | |
// timings.push("PageLoadTime: " + ( t.loadEventEnd - t.navigationStart)); | |
// timings.push("DOMContentLoadedTime: " + (t.domContentLoadedEventEnd - t.navigationStart )); | |
// timings.push("ResponseTime: " + (t.responseEnd - t.requestStart) ); | |
// timings.push({ label: "Connection", time: t.connectEnd - t.connectStart }); | |
// timings.push({ label: "Response", time: t.responseEnd - t.responseStart }); | |
// timings.push({ label: "DomainLookup", time: t.domainLookupEnd - t.domainLookupStart }); | |
// timings.push({ label: "LoadEvent", time: t.loadEventEnd - t.loadEventStart }); | |
// timings.push({ label: "UnloadEvent", time: t.unloadEventEnd - t.unloadEventStart }); | |
// timings.push({ label: "DOMContentLoadedEvent", time: t.domContentLoadedEventEnd - t.domContentLoadedEventStart }); | |
// chrome.loadTimes will be removed see https://bugs.chromium.org/p/chromium/issues/detail?id=621512 | |
// var lt = window.chrome && window.chrome.loadTimes && window.chrome.loadTimes(); | |
// if(lt) { | |
// if(lt.wasNpnNegotiated) { | |
// timings.push({ label: "NPN negotiation protocol", time: lt.npnNegotiatedProtocol }); } | |
// timings.push({ label: "ConnectionInfo", time: lt.connectionInfo }); | |
// timings.push({ label: "FirstPaintAfterDocumentLoad", time: Math.ceil(lt.firstPaintTime - lt.finishDocumentLoadTime) }); | |
// } | |
return timings; | |
// return perf; | |
} | |
console.table(getPerformanceTimings()) | |
/* | |
undefined | |
*/ |
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