MC-224767Performance unacceptable
Running Java 21w17a with the datapack for deep mining on Windows 10, performance is terrible. Movement spends much time in a locked-up state. I see 2-5 seconds of lockout every few seconds of movement. It's much worse flying at higher altitudes, probably due to rendering more distant objects, but even underground in a 1x2 tunnel, there are delays.
But, the worst part is that some game elements are still running in the background. Leaves from chopped trees sometimes decay, so saplings and sticks have dropped during the lockout period, and just are "there" when the lockout ends. I don't know if mobs can spawn, since they don't spawn close to players. But, I did have a creeper move to the bottom of a 2x2 jungle tree I was chopping. It didn't move in but rather was just "there", implying that it moved in during one of my lockout instances.
Without the datapack, performance is back to typical for the game. But, turn on the datapack and the game becomes essentially unplayable. Therefore, I believe this should be a top priority to fix if you want decent player feedback about the second half of Caves & Cliffs.
Environment
Java 21w17a with the datapack for deep mining on Windows 10. PC: I7-9700 3.6GHz, 32 GB RAM, 1T SSD system drive. Task Manager shows the same general performance graphs with or without the datapack, so it's not a PC or Windows issue.
Created Issue:
Performance unacceptable
Running Java 21w17a with the datapack for deep mining on Windows 10, performance is terrible. Movement spends much time in a locked-up state. I see 2-5 seconds of every few seconds of movement. It's much worse flying at higher altitudes, probably due to rendering more distant objects, but even underground in a 1x2 tunnel, there are delays.
But, the worst part is that some game elements are still running in the background. Leaves from chopped trees sometimes decay, so saplings and sticks have dropped during the lockout period, and just are "there" when the lockout ends. I don't know if mobs can spawn, since they don't spawn close to players. But, I did have a creeper move to the bottom of a 2x2 jungle tree I was chopping. It didn't move in but rather was just "there", implying that it moved in during one of my lockout instances.
Without the datapack, performance is back to typical for the game. But, turn on the datapack and the game becomes essentially unplayable. Therefore, I believe this should be a top priority to fix if you want decent player feedback about the second half of Caves & Cliffs.
Environment
Java 21w17a with the datapack for deep mining on Windows 10. PC: I7-9700 3.6GHz, 32 GB RAM, 1T SSD system drive. Task Manager shows the same general performance graphs with or without the datapack, so it's not a PC or Windows issue.
Running Java 21w17a with the datapack for deep mining on Windows 10, performance is terrible. Movement spends much time in a locked-up state. I see 2-5 seconds of lockout every few seconds of movement. It's much worse flying at higher altitudes, probably due to rendering more distant objects, but even underground in a 1x2 tunnel, there are delays.
But, the worst part is that some game elements are still running in the background. Leaves from chopped trees sometimes decay, so saplings and sticks have dropped during the lockout period, and just are "there" when the lockout ends. I don't know if mobs can spawn, since they don't spawn close to players. But, I did have a creeper move to the bottom of a 2x2 jungle tree I was chopping. It didn't move in but rather was just "there", implying that it moved in during one of my lockout instances.
Without the datapack, performance is back to typical for the game. But, turn on the datapack and the game becomes essentially unplayable. Therefore, I believe this should be a top priority to fix if you want decent player feedback about the second half of Caves & Cliffs.
![[Mod] tryashtar](../../../data/avatars/users/41963.png){kind=small}
Thank you for your report!
We're tracking this issue in
MC-197616, so this ticket is being resolved and linked as a duplicate.If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! Please report any issues on Discord or Reddit
That issue is completely unrelated to this one. Please reopen this.
While locked out today, I was killed by a zombie. If the game locks the player, it should lock EVERYTHING.
That issue is the actual and direct cause of this one.