Get flash to fully experience Pearltrees
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Club GreenSock Licensing Forums Learning Resources About Layout Loading Personal Text Transforming Tweening Uncategorized XML Documentation Getting Started Speed Tests Tips & Tricks Plugin Explorer Feature Comparison Join Club GreenSock On the heels of releasing a new version of TweenLite and TweenMax and investing a lot of time into optimizing performance, I figured I’d take a few minutes to throw together a tool that could demonstrate and quantify any speed differences among a few of the tweening engines out there. My goal was to post the tool and let the Flash community add to it if they so desired.
Measuring Frame Rate Performance , the next episode in the gripping and suspenseful series CodeDependent , is now available from Adobe TV . This show different notions of "frame rates" and performance in Flex applications, how they relate to each other, and ways of measuring them. Frame rates directly affect the perceived performance and smoothness of animations, so it's something near and dear to my geeky animation heart. Measuring performance may not be something you need to do in every (or any) application, but it's good to know what's going on under the hood and how to get more information if you do need it. I neglected to mention an important detail about 'render' events (thanks, Corey ). In Flash applications, if you call updateAfterEvent() to cause a render event (as we do internally in Flex effects when handling Timer events), you actually need to call stage.invalidate() to make sure that the player sends out render notifications.
In 2005 Ted Patrick posted a great article on the frame execution model inside the Flash Player that he dubbed the ‘ elastic racetrack ‘. It’s served as a great reference for me over the years to help understand how code execution and rendering were balanced within the processing of a frame. Since the introduction of Flash Player 9 and the new AVM2, I’ve noticed a few changes to the elastic racetrack model and thought I’d share them.
In computer programming , green threads are threads that are scheduled by a virtual machine (VM) instead of natively by the underlying operating system . Green threads emulate multithreaded environments without relying on any native OS capabilities, and they are managed in user space instead of kernel space , enabling them to work in environments that do not have native thread support. [ 1 ] [ edit ] Performance On a multi-core processor, native thread implementations can automatically assign work to multiple processors, whereas green thread implementations normally cannot. [ 1 ] [ 2 ] Green threads can be started much faster on some VMs. On uniprocessor computers, however, the most efficient model has not yet been clearly determined. Benchmarks on computers running the (ancient) Linux kernel version 2.2 have shown that: [ 3 ]
Introduction When Flash Player 9 was released, one of the touted features was performance with the new ActionScript Virtual Machine. At the time, I had put Flex 2 through a few of it’s paces, and felt that the new Flash Player had more than enough speed.
Last week, I spoke at the Adobe Live event in Paris about Flash Player and AIR and the future evolutions we are bringing to the platform. At the end of my session I gave a sneak peek of one of the features we are working on related to profiling. It will revolutionize the way you do profiling in Flash Player and AIR today. Just for a little context about it, today, you can mainly profile the VM through the Flash Builder profiler, but soon, thanks to this feature, Flash Builder will also allow you to profile everything in the player, down to the deep internals of it. You want to know how much time is taken on each frame ? To do what ?