Sorry, I believe I'm running a 64-bit JRE in both cases. I will verify when I’m back in the office tomorrow.
Scott > On Jan 26, 2017, at 9:56 PM, Philip Race <philip.r...@oracle.com> wrote: > > I was asking about the VM not the O/S. > > 32 bit or 64 bit in this case. > > Notably the 32 bit client VM is gone so you get the 32 bit server VM. > That could make a difference, although in theory the server VM performs > better - so > long as it does not run out of memory. > > -phil. > > On 1/26/17, 6:44 PM, Scott Palmer wrote: >> I’ve only tested with Java 9 on Windows 10 64-bit so far. >> >> I have not yet done any profiling to try to isolate where the difference >> might be. The application generates data in native code, wrapped in a >> native ByteBuffer and passes an object around holding the buffer and map of >> properties to go with it. I’m doing virtually no processing on the data and >> just measuring the rate that packets are going through the workflow so far. >> The GUI is mostly static during the test except for a table and some labels >> showing stats that are updated with bitrates, packet rates, timestamps etc. >> >> I’ll continue to try to isolate a test case that I can share as time allows. >> I should be able to get some testing done on Mac and Linux as well and will >> send a followup email with any new information. >> >> Regards, >> >> Scott >> >> >>> On Jan 26, 2017, at 9:37 PM, Philip Race<philip.r...@oracle.com> wrote: >>> >>> Scott, >>> >>> What VM/bitness/platforms show this ? All or just a specific one ? >>> >>> -phil. >>> >>> On 1/26/17, 6:08 PM, Kevin Rushforth wrote: >>>> Hi Scott, >>>> >>>> Thanks for the report. The only JDK 9 specific performance problems I have >>>> seen is with startup, which would be a good thing to discuss on >>>> jigsaw-dev. If you are seeing actual application slowdown, that might be >>>> something else, depending on where the problem is. Have you profiled your >>>> application? >>>> >>>> -- Kevin >>>> >>>> >>>> Scott Palmer wrote: >>>>> I finally managed to get my app running on JDK 9. It is based on a >>>>> plugin architecture and the plugins are made accessible by modifying the >>>>> system class loader at runtime (because that seemed to be the only way to >>>>> make things like JAXB able to reach the classes in the plugins). That >>>>> “hack” broke with the module system so I had to find an alternative. >>>>> (Now I’m using a java agent to get an Instrumentation interface so I can >>>>> do it in a somewhat supported way via the appendToSystemClassLoaderSearch >>>>> method.) >>>>> >>>>> Anyway, I’ve noticed that the application runs slower on Java 9. For a >>>>> simple test I see almost a 10% performance drop. However, I’m not sure >>>>> that it is Java FX related. I see the same throughput with the default >>>>> renderer or the recently added Marlin renderer, always a bit slower than >>>>> Java 8u121. I use the same JVM options, including forcing the garbage >>>>> collector to use the same algorithm. >>>>> >>>>> Is there any expectation of a performance drop with JDK 9 at this stage? >>>>> For example should I expect some unoptimized stuff in the EA builds? >>>>> I guess the jigsaw-dev alias the right place to bring this up? >>>>> >>>>> I have a feeling it is going to be difficult to track down. :-( >>>>> >>>>> I have noticed a couple layout issues fixed with JavaFX 9. Stuff that >>>>> used to “snap into place” only when I resized a dialog now seems to be >>>>> correct when the dialog first appears. Thanks for that! >>>>> >>>>> Regards, >>>>> >>>>> Scott >>>>> >>>>> >>>>>> On Jan 11, 2017, at 2:14 PM, Kevin Rushforth<kevin.rushfo...@oracle.com> >>>>>> wrote: >>>>>> >>>>>> As you may know JDK 9 has hit the feature extension complete milestone >>>>>> [1]. We still have a small number of weeks to fix P1-P3 bugs, but we >>>>>> need to know about them in order to fix them. Our focus will be on bugs >>>>>> that are new in JDK 9 (regressions). >>>>>> >>>>>> I ask all JavaFX developers to please download JDK 9 early access [2] >>>>>> and test your application. You can report any bugs via bugs.java.com >>>>>> [3]. If you have any questions about whether a behavior is a bug or is >>>>>> expected, please ask on this alias or on the jigsaw-dev alias [4]. >>>>>> >>>>>> Thank you. >>>>>> >>>>>> -- Kevin >>>>>> >>>>>> [1] http://openjdk.java.net/projects/jdk9/ >>>>>> [2] https://jdk9.java.net/download/ >>>>>> [3] http://bugreport.java.com/ >>>>>> [4] jigsaw-...@openjdk.java.net >>>>>>
