PUBLIC MARKS with tag performances

PPM is a process manager, supercharger and load balancer for modern PHP applications.

Analyze your site’s speed and make it faster.

Test downlink, latency and dns from your connection to cloud services. To start a test, first select services in the field below, and then click start. This test doesn't require nor install any plugins or software, and no personal information is captured during testing.

Ci-dessous vous trouverez quelques mesures effectuées hier sur une période de 24 heures. Cette page ne représente qu’un petit extrait des données collectées sur 10 % des réseaux du pays sélectionné. Beaucoup d’autres données sont disponibles sur le portail de la communauté Radar.

Blackfire empowers all developers and IT/Ops to continuously verify and improve their app’s performance, throughout its lifecycle, by getting the right information at the right moment.

Automated and on-demand performance testing for DevOps. Load test your website, web app, mobile app or API instantly with up to 1.2 million concurrent users.

While not the most amusingly named feature of the web platform, everything seems to point at ServiceWorker being the most significant addition to the web platform since the introduction of AJAX – over 10 years ago. Not to be confused with WebWorker (used to offload intense compute operations onto another execution thread), ServiceWorker allows you to intercept (and hijack) network requests originating from your site before they’re even dispatched. This article explores how it works, what it means and what it enables, and how you can implement it by following a case study.

Paul Lewis did an interesting article a while back about avoiding unnecessary paints through disabling hover effects as the user scrolls, which is a great approach. The down side being managing all your hover states through a parent class.

Le modèle de données relationnel de certaines applications web est parfois si complexe que les performances se dégradent rapidement en cas d’affluence. Pour répondre à cette problématique, nous abordons dans cet article la mise en oeuvre d’une solution moderne d’indexation : Elasticsearch.

Whether or not you like parallaxing sites is one thing, but what you can say pretty confidently is that they’re a black hole of performance. The reason for this is that browsers tend to be optimized for the case where new content appears at the top or bottom of the screen when you scroll (depending on your scroll direction) and, in general terms, the browsers work best when very little changes visually during a scroll. For a parallax site that’s rarely the case since many times large visual elements all over the page change, causing the browser to do a repaint of the whole page.

Dedicated Web Workers provide a simple means for web content to run scripts in background threads.  Once created, a worker can send messages to the spawning task by posting messages to an event handler specified by the creator. The worker thread can perform tasks without interfering with the user interface.  In addition, they can perform I/O using XMLHttpRequest (although the responseXML  and channel attributes are always null).

jsPerf aims to provide an easy way to create and share test cases, comparing the performance of different JavaScript snippets by running benchmarks

One of the great ways to reduce the perceived load time of pages on your site is to prefetch resources that will be needed while users are busy reading or interacting with the current page.

This is the nginx port of mod_pagespeed.

Lazy Load is a jQuery plugin written in JavaScript. It delays loading of images in long web pages. Images outside of viewport (visible part of web page) wont be loaded before user scrolls to them. This is opposite of image preloading. Using Lazy Load on long web pages containing many large images makes the page load faster. Browser will be in ready state after loading visible images. In some cases it can also help to reduce server load.