Scene graph performance

[Felix Bembrick]

I agree that the original question has led to a discussion of a somewhat different nature and I accept that the benchmark itself may be problematic.

But others have reported similar observation using different benchmarks.

> On 22 Jul 2016, at 07:42, Steve Hannah <steve at weblite.ca> wrote:
> 
> I've just been a fly on the wall for this thread, but ... I think this
> thread has gone off track a bit.  Felix's original observation was that he
> got the same benchmark results from two machines that should produce
> different results because one is more powerful than the other in both CPU
> and GPU).  The talk of things that could be done to improve JavaFX
> performance don't seem relevant to this.  The real question is, why is a
> slow computer performing as well as a fast computer?
> 
> The answer is likely far simpler than the explanations proposed here.
> Either there is a problem with the benchmark methodology, there is an
> environment difference that isn't being accounted for (which is also a
> methodology problem), or there is some mechanism that is throttling
> performance.
> 
> My hunch is that there is a problem with the benchmark.
> 
> Steve
> 
>> On Thu, Jul 21, 2016 at 2:33 PM, Hervé Girod <herve.girod at gmail.com> wrote:
>> 
>> I really don't understand all this. We use Java FX 8 in a graphic
>> framework where we need high performance (prototyping Cockpit Display
>> Systems with dynamic Maps and Head Up Displays), and we find that JavaFX
>> performance is pretty good our use case. For example, Qt / QML performance
>> is far worse in our POV, for no real additional simplicity of usage for big
>> projects. We also used OpenGL before (used JOGL), but (at least for our own
>> usage) what additional performance benefits we could maybe achieve were not
>> worth the amount of work we would have needed to get them (if we had any).
>> 
>> Hervé
>> 
>> Sent from my iPad
>> 
>>>> On 21 juil. 2016, at 23:09, Felix Bembrick <felix.bembrick at gmail.com>
>>> wrote:
>>> 
>>> Yes, well I think this the problem:
>>> 
>>> 1) Going on history, it would be a best case scenario for Java 10 to be
>> released in 2020 (but more likely 2021).
>>> 
>>> 2) With JavaFX, we are already "behind the game" (pun intended).
>>> 
>>> 3) JavaFX itself has evolved much slower than its competitors.
>>> 
>>> 4) Technology in general will have moved ahead by massive leaps by 2021
>> (including our competitors).
>>> 
>>> 5) If the *first* optimised JavaFX scene graph is not released until
>> 2021, I genuinely fear that not only would "the ship have sailed" but, it
>> would actually be way over the horizon and completely out of sight.
>>> 
>>> Felix
>>> 
>>>> On 22 Jul 2016, at 06:51, dalibor topic <dalibor.topic at oracle.com>
>> wrote:
>>>> 
>>>> There is no JDK 10 Project in OpenJDK yet, so there has been no
>> proposed schedule for it yet.
>>>> 
>>>> cheers,
>>>> dalibor topic
>>>> 
>>>>> On 21.07.2016 20:51, Felix Bembrick wrote:
>>>>> What is a "ball park" figure (i.e. around the 6-9 month granularity if
>> possible) for the the release date for JDK 10?
>>>>> 
>>>>>> On 22 Jul 2016, at 04:42, Kevin Rushforth <kevin.rushforth at oracle.com>
>> wrote:
>>>>>> 
>>>>>> Oh, I was agreeing with the analysis of what *would* need to be done.
>> I am not saying that I think it *should* be done, given resources other
>> priorities, etc. Having said that, as I mentioned in an earlier post a
>> month or so ago, we will be collecting ideas for possible JDK 10 features
>> once JDK 9 is finished. Perhaps this could go into the bucket of things to
>> consider, but it isn't something I would think would be high on the
>> list....compared to, say, WebGL, some sort of interop with native
>> rendering, updated graphics pipelines (we're current stuck on DX 9 and GL
>> 2), public API for UI Controls Behaviors, etc.
>>>>>> 
>>>>>> -- Kevin
>>>>>> 
>>>>>> 
>>>>>> Felix Bembrick wrote:
>>>>>>> Well, I'm putting my hand up for this.
>>>>>>> 
>>>>>>> Kevin, would you like to discuss this with me on or offline?
>>>>>>> 
>>>>>>> Felix
>>>>>>> 
>>>>>>> P.S. Thanks Markus for your insight!
>>>>>>> 
>>>>>>> 
>>>>>>>> On 22 Jul 2016, at 04:22, Kevin Rushforth <
>> kevin.rushforth at oracle.com> wrote:
>>>>>>>> 
>>>>>>>> Yep.
> 
> 
> 
> -- 
> Steve Hannah
> Web Lite Solutions Corp.