Apache – How to improve the performance of Flex App

Theres a couple things that typically happen on an enterframe Handler within a flex project. Some things to watch for

1. Manual < mycomponent enterFrame="" > event responses or ones added manually via component.addEventListener(Event.ENTER_FRAME, myfunc)

2. callLater() calls, these happen ALOT in the framework and can be byproduct of jumping down any number of rabbit holes, developers tend to use these alot to solve timing related problems and sometimes bad code can cause these to continue calling every frame. For example, there are ~120 occurrences of a calllater() in the latest flex sdk build.

3. lastly, I can't guarantee that the [enterframeEvent] handles just enterframe specific event callbacks, and not timers, mouse, etc.. events, since enterframes occur during the main event loop, you may be seeing the cumulative result of all events firing from the main event pool. I'm not saying this IS whats happening, but I can't say it ISN'T whats happening either, I don't know enough about the internals there to be sure.

/edit also as stated earlier, the [enterFrameEvent] should technically fire internally at the start of each frame, but it shouldn't be doing anything unless events have been explicitly attached to it to execute user code.

I have implemented a system such as the one you suggest, wrapping all of my methods in try/catch and sending the stack trace to a service that emails me the errors. I created a basic format for the error that logs which method the error occurred in. I noticed that sometimes I end up getting null from the stack traces, so I wanted to log that information for these situations.

It GREATLY improved my application. I tracked down a (large) handful of errors and released a much cleaner build to my users. Now I don't ever get the emails.