I launched ensemble8 and go directly to animation example then just leave it 
there. After few minutes, my Laptop heat up.

Tai
> On Mar 28, 2016, at 12:06 PM, Tai Hu <tai...@veroanalytics.com> wrote:
> 
> My MacBook Pro is a i5 dual core with 16GB of memory. The minimal application 
> that exhibits the issue is just a simple window with web view and I used D3JS 
> draw a simple graph (only 5-6 nodes). Then just let application sit idle 
> there without doing anything. The CPU will heat up quickly. I put the 
> application in VisualVM, other than JavaFX application thread, the next 
> thread is taking up CPU time is QuantumRender. But my application is just 
> sitting idle, no animation or any user activities.
> 
> Thanks,
> 
> Tai
>> On Mar 28, 2016, at 11:58 AM, Scott Palmer <swpal...@gmail.com> wrote:
>> 
>> This must be something else then.  How many cores are on the that MacBook? 
>> I’m thinking maybe there are four cores and 25% CPU could indicate that 
>> there is one thread stuck in a busy loop.  That could explain the heat.
>> 
>> Do you have any animations running?  A static application just sitting there 
>> shouldn’t have noticeable CPU usage. I have tons of stuff running now, not 
>> JavaFX though, and CPU usage is around 2%.
>> What is the minimal application that exhibits the issue?
>> 
>> Scott
>> 
>> 
>>> On Mar 25, 2016, at 6:15 PM, Tai Hu <tai...@veroanalytics.com> wrote:
>>> 
>>> I have a MacBook Pro 13 inch (2014 model). If I remembered correctly, it
>>> only has an integrated GPU. There is no discreet GPU
>>> 
>>> Thanks,
>>> 
>>> Tai
>>> 
>>> On Friday, March 25, 2016, Phil Race <philip.r...@oracle.com> wrote:
>>> 
>>>> 
>>>> 
>>>> See https://developer.apple.com/library/mac/qa/qa1734/_index.html
>>>> It is mentioned in (one of) the bugs you can get to if you follow the JBS
>>>> bug trail
>>>> 
>>>> -phil.
>>>> 
>>>> On 3/25/2016 2:48 PM, Tai Hu wrote:
>>>> 
>>>>> Thanks for the info. What entry should I put into info.plist?
>>>>> 
>>>>> Thanks
>>>>> 
>>>>> On Friday, March 25, 2016, Kevin Rushforth <kevin.rushfo...@oracle.com>
>>>>> wrote:
>>>>> 
>>>>> Yes, 8u77 has the FX fix for this issue:
>>>>>> 
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8132775
>>>>>> 
>>>>>> However, due to the way Apple chose to enable this, you will need to
>>>>>> package your application with the appropriate entry in the Info.plist
>>>>>> file.
>>>>>> 
>>>>>> The equivalent AWT fix --
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8041900
>>>>>> -- is fixed in 8u92 which is scheduled to be released next month.
>>>>>> 
>>>>>> -- Kevin
>>>>>> 
>>>>>> 
>>>>>> Tai Hu wrote:
>>>>>> 
>>>>>> I am on the latest 8u77.
>>>>>>> 
>>>>>>> On Friday, March 25, 2016, Scott Palmer <swpal...@gmail.com> wrote:
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 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
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> <javascript:;>> 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
> 

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