That's curious. SLI is designed specifically with gamers in mind! I'll investigating running without SLI and report back.
Felix > On 30 Oct 2015, at 19:44, Chris Nahr <chris.n...@gmail.com> wrote: > > If it's slower on an SLI machine than on an ordinary one then yes, I suspect > JavaFX just can't handle SLI properly. Among gamers I've often heard that > it's a notoriously problematic configuration. Can you switch your card to > non-SLI mode and retest performance? > > --Chris > >> On 2015-10-30 09:19, Felix Bembrick wrote: >> I am using Java 8u66 and performance is really poor. >> >> I suspected a driver issue but I have the latest driver for my Titan X card >> (4 in SLI mode) and running the 4K monitor tests in 3DMark says my machine >> is in the top 1% fastest computers ever to run the tests. >> >> It looks to me that JavaFX just can't deliver acceptable performance on 4K >> monitors, even with the most powerful graphics cards on the planet. Or maybe >> it doesn't support SLI? >> >> It could be Windows 10 related but I don't think so. And I am definitely >> getting hardware acceleration according to the output so I suspect JavaFX >> has trouble moving so many pixels around on these hi-res monitors. >> >> All other 3D apps and games run blindingly fast but JavaFX actually runs >> slower on this beast than on my wife's little i5 powered Dell machine with a >> low range graphics card, also running Windows 10. >> >> Any ideas? >> >> Felix >> >>> On 30 Oct 2015, at 17:33, Chris Nahr<chris.n...@gmail.com> wrote: >>> >>> Hi-DPI is supported on Windows, assuming you have 8u60 or later (better >>> 8u66 or later so a ComboBox doesn't freeze the application!). On my Dell >>> XPS-15 with Windows 10 and 4K displays JavaFX also uses hardware >>> acceleration, in this case with the Intel 4600 integrated GPU. >>> >>> However, this causes frequent Intel display driver crashes and restarts >>> because the Windows 10 drivers are still so immature. Same happens in WPF >>> applications, so it's not specific to JavaFX. I've grabbed my driver >>> directly from the Intel website. Possibly your system runs an older driver >>> that causes JavaFX not to use HA. >>> >>> Given how unstable it currently is on Windows 10, that might not be a bad >>> idea. But of course you could try manually updating and see what happens to >>> JavaFX performance. >>> >>> Cheers, Chris >>> >>> >>>> On 2015-10-28 17:24:38, Felix Bembrick <felix.bembr...@gmail.com> wrote: >>>> I just installed JavaFX on my new Windows 10 machine which is extremely >>>> powerful but has two 4K monitors and while everything looks great and the >>>> right "size", the performance is very sluggish to say the least. >>>> >>>> Is this because Hi-DPI is not yet supported in JavaFX on Windows? >>>> >>>> Thanks, >>>> >>>> Fix >>>
