Shane McCartney put together two (1,2) great performance summaries over at his “Lost in Actionscript,” blog.

In addition to that, I thought I’d post all other links I’ve collected over some time about performance.

Here ya go:
http://robert.zubek.net/blog/2008/01/12/actionscript-3-bytecode-performance/
http://www.rozengain.com/blog/2007/05/01/some-actionscript-30-optimizations/
http://lab.polygonal.de/2006/10/08/as3-loops-performance-comparison/
http://blog.andre-michelle.com/2005/as3-optimations-suggestions/
http://www.adobe.com/devnet/flashplayer/articles/resource_management.html
http://www.adobe.com/devnet/flashplayer/articles/garbage_collection.html
http://www.gskinner.com/blog/archives/2006/06/types_in_as3_in.html
http://www.danielhai.com/blog/?p=55
http://lab.polygonal.de/2007/05/10/bitwise-gems-fast-integer-math/
http://www.danielhai.com/blog/?p=38
http://www.bit-101.com/blog/?p=1023
http://lab.polygonal.de/2007/07/18/fast-and-accurate-sinecosine-approximation/
http://www.rockonflash.com/blog/?p=63
http://blog.haxe.org/entry/26
http://agit8.turbulent.ca/bwp/2008/08/04/flash-as3-optimization-fastest-way-to-copy-an-array/
http://osflash.org/as3_speed_optimizations
http://flexblog.faratasystems.com/?p=147
http://elromdesign.com/blog/2008/03/27/boost-memory-performance-on-data-structures-using-hashmapcollection-api/