@EliteHog if you would care to explain how to allocate more memory then I am happy to try it. I don't see that as an option anywhere in the launcher.
@Maxime Lebrot No, I have not altered the installation and I am using the default launcher.
@AdyTech99 I think you are right. I had to restart the launcher for it to make a difference, but it certainly does seem to be a lot smoother with that option enabled. Certainly playable on a quick test.@Mention someone by typing their name...
I have added a profiling log as requested. There were at least 3 instances of the lag/stutter during the log period.
The following screenshot shows the regular lag spikes on the performance graph. The game stutters when each red bar reaches the left.
I'm having exactly the same issue. The same world in 24w13a does not lag, but in 24w14a the game freezes for a half second about every 10 seconds. The game is pretty much unplayable.
I'm using an M2 MacBook Air, running Sonoma 14.0. When I open a world in 24w14a it is definitely running Java 21
Thanks
The launcher options appear to suggest that it already has 2Gb allocated
-Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M