mojira.dev
MCPE-22362

Lag/Massive resource usage

When playing the game uses around 90% CPU and anywhere from 500MB - 3GB ram usage

  • When transitioning to the Nether load time is about 10 minutes or crashes the game.

  • During multiplayer if the host transitions to the Nether or back to the Overworld other players cannot use items or devices in either world basically the world freezes for other players.

  • when traveling across large areas host machine lags as it tries to render the new areas sometimes to the point of almost freezing completely.

  • Chunk render distance makes no difference to performance.

  • some areas don't render until game is reloaded.

  • Game crashes on "Save & Exit"

Currently the host is a Intel I7 with 16 GB ram, game is loaded on a Intel Pro 2500 series SSD.

Linked issues

Attachments

Comments 115

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We are experiencing this as well. We had our world hosted on a Realm and it was lagging horribly for everyone all the time, does not appear to be player event driven for us. We thought it was network lag because it was effecting everybody so we downloaded the realm and tried playing locally. For the network players they experience laggy response but for the host it is complete UI freezes and extremely high CPU utilization. It appears to be periodically triggered as it will spike for awhile then clear up then start again. There are about 7 threads starting from ucrtbase.dll!o__realloc_base+0x20 that take up all available CPU when the hanging starts. I have an 8 core CPU and it's taking over all 8 cores. I've removed all resource packs and it hasn't had any impact.

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We are experiencing this as well. We had our world hosted on a Realm and it was lagging horribly for everyone all the time, does not appear to be player event driven for us. We thought it was network lag because it was effecting everybody so we downloaded the realm and tried playing locally. For the network players they experience laggy response but for the host it is complete UI freezes and extremely high CPU utilization. It appears to be periodically triggered as it will spike for awhile then clear up then start again. There are about 7 threads starting from ucrtbase.dll!o__realloc_base+0x20 that take up all available CPU when the hanging starts. I have an 8 core CPU and it's taking over all 8 cores. I've removed all resource packs and it hasn't had any impact.

105 more comments
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1.2 seems to have completely fixed these issues for me.

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This appears to have fixed issues with maps and movement, however new issues resulting in lag have appeared with regards to the crafting changes (also dragging items across crafting table slots).

Also an issue that was not as prominent before was placing torches while mining. If placed quickly enough it would take a torch from your inventory placing it for a split second before vanishing, since joining the BETA program this is much easier to encounter and also seems to occur when moving and placing torches.

I have also encountered a minor inventory glitch where shift clicking 6 brown mushrooms into a chest with 44 mushrooms, left a "ghost" item in my character inventory and did not update the chest inventory.
This took some persistence to remedy manually dragging the stack from the chest into my inventory until it finally updated the stack, then logging out and back in before moving it back into the chest, to get the correct item count of 50 brown mushrooms I had to repeat the logout/login step again.

The main thing is that the map glitches now appear to be corrected.

migrated

This appears to have fixed issues with maps and movement, however new issues resulting in lag have appeared with regards to the crafting changes (also dragging items across crafting table slots).

Also an issue that was not as prominent before was placing torches while mining. If placed quickly enough it would take a torch from your inventory placing it for a split second before vanishing, since joining the BETA program this is much easier to encounter and also seems to occur when moving and placing torches.

I have also encountered a minor inventory glitch where shift clicking 6 brown mushrooms into a chest with 44 mushrooms, left a "ghost" item in my character inventory and did not update the chest inventory.
This took some persistence to remedy manually dragging the stack from the chest into my inventory until it finally updated the stack, then logging out and back in before moving it back into the chest, to get the correct item count of 50 brown mushrooms I had to repeat the logout/login step again.

The main thing is that the map glitches now appear to be corrected.

migrated

This appears to have fixed issues with maps and movement, however new issues resulting in lag have appeared with regards to the crafting changes (also dragging items across crafting table slots).

Also an issue that was not as prominent before was placing torches while mining. If placed quickly enough it would take a torch from your inventory placing it for a split second before vanishing, since joining the BETA program this is much easier to encounter and also seems to occur when moving and placing torches.

I have also encountered a minor inventory glitch where shift clicking 6 brown mushrooms into a chest with 44 mushrooms, left a "ghost" item in my character inventory and did not update the chest inventory.
This took some persistence to remedy manually dragging the stack from the chest into my inventory until it finally updated the stack, then logging out and back in before moving it back into the chest, to get the correct item count of 50 brown mushrooms I had to repeat the logout/login step again.

The main thing is that the map glitches now appear to be corrected.

migrated

This appears to have fixed issues with maps and movement, however new issues resulting in lag have appeared with regards to the crafting changes (also dragging items across crafting table slots).

Also an issue that was not as prominent before was placing torches while mining. If placed quickly enough it would take a torch from your inventory placing it for a split second before vanishing, since joining the BETA program this is much easier to encounter and also seems to occur when moving and placing torches.

I have also encountered a minor inventory glitch where shift clicking 6 brown mushrooms into a chest with 44 mushrooms, left a "ghost" item in my character inventory and did not update the chest inventory.
This took some persistence to remedy manually dragging the stack from the chest into my inventory until it finally updated the stack, then logging out and back in before moving it back into the chest, to get the correct item count of 50 brown mushrooms I had to repeat the logout/login step again.

The main thing is that the map glitches now appear to be corrected.

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(Unassigned)

Confirmed

Windows

Windows 10 Pro x64 (1703)

1.1.0.55, 1.1.2.50, 1.1.3.1, 1.1.4.51, 1.1.5.0, 1.2.1.1

1.2.2.3

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