very poor performance on iOS :(

Richard Bair richard.bair at
Wed Jul 24 08:13:33 PDT 2013

Unfortunately, I'm one of those stuck waiting for the apple developer portal to come back online in order to renew my apple developer subscription, so I can't actually try this out myself.

Have you tried running with the perfLogger (I included instructions and how to understand the output in another thread yesterday). If you can show the output from the perf logger that would at least give some guidance as to where the time is being spent.


On Jul 24, 2013, at 5:16 AM, Tobias Bley <tobi at> wrote:

> Hi,
> i would like to start a discussion about the performance of JavaFX8 on iOS (via RoboVM). If you make a little app with just one toggle button and run it on iPhone4 (not simulator), the JavaFX rendering is very slow. So the button press is painted with a really noticeable delay. I don’t understand this behavior because I thought JavaFX rendering is very good and optimized using hardware accelerated OpenGL code???
> Best regards,
> Tobi

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