Deep Tracing of Internet Explorer

shawndrost · on Nov 18, 2009

Knowing John Resig, we'll get a blog post in 6 weeks showing a 30% speedup in jQuery in ie6 and 7. This man is a machine.

subbu · on Nov 18, 2009

30% would be an unfair expectation to set for John :)

kwamenum86 · on Nov 18, 2009

under or overestimate?

0x7feb38ad · on Nov 18, 2009

Under. John is known for his insane optimizations, achieving speed ups of up to 800%. http://blog.jquery.com/2007/07/01/jquery-113-800-faster-stil...

woid · on Nov 18, 2009

I think dynaTrace guys did something insane. Kudos!

Believe me I was doing some IE stuff (BHOs) and working with their COM extension model is one of my worst experiences (right after creating installer using WiX system).

btw. check out my web-dev tools at http://binaryage.com :-)

NathanKP · on Nov 17, 2009

That is pretty incredible. I thought that the "Develop" menu and JavaScript profiler in Safari were great, but this deep tracing tool looks even better.

adatta02 · on Nov 18, 2009

I wonder how this gets such detailed information about network and DOM events without injecting debug signals into the browser binaries?

bdr · on Nov 18, 2009

The article made it sound to me like they are altering the browser's code.

jcapote · on Nov 18, 2009

Can't you do this through COM? (Isn't that the point? I dunno, I've never programmed windows stuff...)

zmimon · on Nov 18, 2009

Yes. You can do nearly all this stuff just by hooking into MS's published interfaces. I've done many pieces of it myself, but seeing it tied together like this so comprehensively is amazing.

mjw · on Nov 18, 2009

Anyone have any tips for memory profiling tools, other than the one mentioned in the article comments? (http://www.softwareverify.com/javascript/memory/feature.html, Windows-only, Firefox-only, non-free)

Hexstream · on Nov 18, 2009

How hard would it be for browser makers to make the kinds of information this tool needs readily available (instead of the tool maker to write very low-level code, basically a giant hack) and how much work would this save for the makers of tools such as dynaTrace?

mey · on Nov 18, 2009

This is head and shoulders above Fiddler 2 for giving you a complete picture of what's going on.

mey · on Nov 18, 2009

Some tools I use

  Network
   WireShark (Cross Platform)
   Fiddler 2 (Win32)
     (Inject into SSL Requests)
  Browers Instrumenting
   Firebug (Firefox)
    FireQuery
    FireRainbow
   Html Validator (FireFox)
   Selenium IDE (FireFox)
   LeetKey (FireFox, mucking with URLEncoding/Base64 etc)
   Internet Explore Developer Tools (IE of course)
   Chrome's built in tools
   Safari's built in tools