This trick improves repaint rate in Win7+Aero: setting resizable to null, and providing own resize hook. Its aint perfect, but still alot better.. check my example:

Increasing performance of a TYPO3 web site is a task that many large companies or freelancers face from time to time. TYPO3 is a great, flexible and powerful framework with amazing possibilities and unlimited expendability. But everything has its costs. TYPO3 may be slow if not configured properly. This article gives 8 tips to improve TYPO3 performance. It requires that you have administrator (root) access to the web server. If you use shared hosting, there is very little that you can do. Read on

Read more: http://dmitry-dulepov.com/article/eight-performance-tips-for-your-typo3-web-site.html#ixzz1WUlh18Yq

General purpose technique for counting comparisons in various searching and sorting applications.

jquery performance test see also http://jsbin.com/aciji4/12

This is a technique for using a JavaScript getter to calculate the value of an attribute just the first time. Rather than caching the value in some private variable and returning it, you just delete the getter and put the calculated value in its place.

Note: I'd read about this technique ages ago, but forgot the details and had to look-up "delete" for removing the getter. :)

Tested with ipotpal.bgurl.org

This is a quick snippet that I use occasionally to profile some pure-Python code, using hotshot. Basically it is this:

1. Put this @hotshotit decorator on the function you want to profile.
2. Run your code through some representative paces. The result will be a <functionname>.prof in the current directory.
3. Process the .prof file and print the top 20 hotspots with the given "show_stats.py" script.

Props to Todd for slapping this code together.

Hotshot is a little out of favour now, so I should -- or Todd :) -- should really come up with an equivalent that uses cProfile.

most people want to gather data about programs etc. most people will use perfmon. what happens if you want to gather data but have to sit on the machine and set up perfmon counters and such. This is the basis for people to write system information gathering programs/counters.