What version of JavaFX are you running? There is a known issue, where JavaFX (and AWT/Swing) trigger activation of the discreet GPU. I believe for FX the issue has been resolved in the latest version, but the equivalent AWT fix hasn't made it to a released version yet.
Scott > On Mar 25, 2016, at 4:12 PM, Tai Hu <tai...@veroanalytics.com> wrote: > > My JavaFX application runs fine on a Windows box with less than 10% of CPU > usage. However, if I run the same application on a MacBook Pro 13 inch > (Laptop monitor, no external monitor). About 30 seconds after I launched > application, MacBook cooling fan will kick in and running high, just a few > minutes later, laptop is too hot to put directly on your lap. Actually I > tried Ensemble app, which has exactly same issue. Few minutes after launch, > fan kicks in and laptop become hot. I put my application under VisualVM and > also checked Mac Activity Monitor, based on the number both of them show the > CPU usage is not extremely high and average out about 25% and sometimes spike > to 40%. But entire machine heats up. Almost all of our Mac clients complained > about this issue to us. Does anyone could shield some light on this issue? > > Thanks, > > Tai
