While reading several posts about JavaScript performance [ 1 ] [ 2 ] I did a simple test, too. My first part will compare Firefox and IE7 using global variables compared with local ones. var x = {"FirstName":"Michael"}; function test1() { return x.FirstName; } function test2() { var...

I'm reading a lot of performance issues when using POST instead of GET in AJAX enabled web applications. What are the key benefits of each http method? And is POST really slower than GET? POST By default no proxy server or web browser is caching this data, you will always get the real data from you...

Tenni Theurer posted a new blog entry on the YUIBlog about performance research with browser cache usage . In an earlier post, I described What the 80/20 Rule Tells Us about Reducing HTTP Requests. Since browsers spend 80% of the time fetching external components including scripts, stylesheets and images...

I'm reading a lot of performance issues when using POST instead of GET in AJAX enabled web applications. What are the key benefits of each http method? And is POST really slower than GET? POST By default no proxy server or web browser is caching this data, you will always get the real data from you...

The idea was to put all JavaScript libraries into the DLR of Silverlight to get better performance, but a first tests failed or is compared to JavaScript directly in the Web browser very slow. To test this I wrote a very simple demo: var s = "" ; var d1 = new Date(); for (var i=0; i<1000; i++) { s...

Did you ever compared client-side RIA frameworks? Alexey Gavrilov has written a great test to directly compare performance : Silverlight (WPF/e) vs. DHTML vs. Flash (Flex) vs. WPF vs Apollo vs. Java (Swing): "The goal of this test is to directly compare performance of different RIA frameworks / approaches...

I'm using Ajax View more and more and find it very useful. The goal of the Ajax View project is to improve developer's visibility into and control over their web applications' behaviors on end-user's desktops. The Ajax View approach is to insert a server-side proxy (or web server plugin) in-between the...