Even this challenging Javascript app that uses the <canvas> tag works well (and faster) on Google Chrome.

Benchmarks for HTML parsers (written in Python).

You can get older versions of Firebug here. I recommend NOT using 1.20b6 as it has a serious performance impact on using GMail. Grab 1.20b4 which is a much more stable release and works fine with GMail.

GMail is severely degraded when running Firebug 1.2.0b6 (for Firefox 3). It's much more confusing as to how to disable Firebug completely for particular domains. I'm using Google Apps for domains, and editing a mail message is just about unusable if I have Firebug enabled in the browser.

Easy to use, and useful Python profilers. cProfile is standard in the Windows distribution.

Does nVideo REALLY offer hardware acceleration for rotated displays? I want dual monitors, with one rotated, but in the past I've notice really poor performance of the display in rotated mode.

The claim here is:

Quoted: Now, with NVRotate, you can rotate any display 90, 180 or 270 degrees for maximum flexibility with no limitations or performance penalties.

But I think that's BS unless they do this with hardware acceleration. I've seen recent forum posts complain that even with high end adaptors, rotated display performance is choppy.

http://forums.nvidia.com/lofiversion/index.php?t2586.html

Really nice post on the JavaScript string concatenation performance (found it because it references my string concat SpeedTrial on mckoss.com).

Interesting bit here is the analysis of the Firefox code AND THEN an even better improvement in the reallocation strategy to get 20x the performance.

Nice summary of rules for optimizing web page load times.

A firefox/firebug extension - gives suggestions for speeding up web page dowloads.

I just ran this across my Blue Dot home page. We get an "F" for the following reasons (BTW - page load time was 5.1s).

- Too many HTTP requests (14 JS files and 49(!) CSS background images)
- Not using a CDN for static content.
- Many Expires headers missing.
- CSS files outside of HEAD?
- Minify JS files
- Mising ETAG's headers (for caching)