GP 3.2 is laggy on M1Pro MBP

GanttProject Desktop Support
1

GP 3.2, M1 Pro MBP, macOS Monterey 12.4

  1. latest dmg + native jre is so far best.

  2. Re-downloaded dmg and replace the app, which results similar to 4) but in a x86 jre. (task monitor shows kind=intel)

  3. It seems 3.2.3244 (live upgraded from 3.2.240) bundled x86 jre, super laggy. Especially when regaining focus by clicking on a task, it takes about 6~7 seconds to highlight that task. Page up/down takes 3~4 seconds.

  4. To use a native jre (kind=apple) like following works way far better, though still not smooth.

/Applications/GanttProject.app/Contents/app/ganttproject -j ~/Downloads/jdk-17.0.2-full.jdk

Regaining focus still takes a second or so to highlight the item. Paging up/down takes near a second and scrolling is possible.

I’m not sure it is a javafx/jre issue or you can do something on GP side.

And with x86 JRE bundled, it quit occasionally, most likely when I resize something in GUI. OS crash report is attached. gp_m1_crashlog.txt (173.5 KB)

2

May I ask you to test GanttProject 3.3 Beta package for Apple Silicon platform? you can download it from here:

https://drive.google.com/drive/folders/1C2IewskPtYExcjZcm2FTbOWxX2j_1ELi?usp=share_link

3

This beta package is fluent! Well done!

/Applications/GanttProject.app/Contents/runtime/Contents/Home/bin/java -version
openjdk version "17.0.5" 2022-10-18 LTS
OpenJDK Runtime Environment (build 17.0.5+8-LTS)
OpenJDK 64-Bit Server VM (build 17.0.5+8-LTS, mixed mode)

uname -a
Darwin Wus-MacBook-Pro.local 21.6.0 Darwin Kernel Version 21.6.0: Mon Aug 22 20:19:52 PDT 2022; root:xnu-8020.140.49~2/RELEASE_ARM64_T6000 arm64
4

Cool, thanks for testing!