> is only noticeable when you're doing 50,000+ loops of non-trivial code.
When you're doing 50,000+ loops of non-trivial code, I don't think it's performance of the loop you have to worry about. :) Here's something about performance: <http://blogs.sun.com/chrisoliver/entry/hotspot_vs_adobe_tamarin_vm> (Note the comments) With the haXe version posted by BlackDog on the haXe list, I'm getting: Flash 8: 12min 33s (only ten repetitions, extrapolated to 100) Flash 9: 15s Neko: 17.5s (Java version from the blog post: 3s) That's just /one/ benchmark, but it should give you an idea about how much faster the new VM is compared to the old one. Mark On 7/27/07, Steven Sacks <[EMAIL PROTECTED]> wrote: > FLASM: http://flasm.sourceforge.net/#optimization > > When it comes to optimizing, there are a few key things to remember: > > 1) Subtraction is faster than addition > 2) Decrementation is faster than incremenations > 3) Pre-decrementation is faster than post-decrementation > > By faster, it means there is less bytecode to run. > > The fastest loops in AS1 and AS2 are: > > var i:Number = len; > while (--i -(-1)) > { > // faster > } > > and > > do > { > // fastest (in theory) > } while (--i -(-1)) > > > However, the difference between those and > > var i:Number = len; > while (i--) > { > // stuff > } > > is only noticeable when you're doing 50,000+ loops of non-trivial code. > > Keep in mind do...while runs at least once. > > > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
