MC-88349Client Memory leak: Map data does not get garbage-collected
When I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map data seems to not get garbage collected.
After leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).
Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards (vanilla 1.8.8 Minecraft client): https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1EL
Environment
Windows 7
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode),
Startup parameters: -Xmx2500M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
Linked Issues
is duplicated by1
Created Issue:
Client Memory leak: Map data does not get garbage-collected
On a multiplayer server, map data does not get garbage collected.
The server I am joining on is running spigot 1.8.8 behind bungeecord.
The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3)
After leaving the server (fully) the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
If you like to see a heap dump with Optifine HD_U_E2 (just left the server and joined a multiplayer server shortly afterwards): https://www.dropbox.com/s/63kdhvt89m3ar2l/heapdump-1441831031385-minecraft-map-memleak.7z?dl=0
There does not seem to be a difference between using optifne and not using optifine.
The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1EL
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many maps csuses the client to use up another gb of ram.
Default texture pack used.
Environment
Windows 7
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode),Startup parameters: -Xmx2500M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
On a multiplayer server, map data does not get garbage collected.
The server I am joining on is running spigot 1.8.8 behind bungeecord.
The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3)
After leaving the server (fully) the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).
Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
If you like to see a heap dump with Optifine HD_U_E2 (just left the server and joined a multiplayer server shortly afterwards): https://www.dropbox.com/s/63kdhvt89m3ar2l/heapdump-1441831031385-minecraft-map-memleak.7z?dl=0There does not seem to be a difference between using optifne and not using optifine.
The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1EL
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map
s csuses the client to use up another gb of ram.Default texture pack used.
When I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map data does not get garbage collected.Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1ELAfter leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
When I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map data does not get garbage collected.Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1ELAfter leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
When I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map data does not get garbage collected.After leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1EL
When I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map datadoesnot get garbage collected.After leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards: https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1ELWhen I say maps, I mean the maps you can hold in your hands, the item.
When a client joins a multiplayer server, map data seems to not get garbage collected.After leaving the server the map data seems to stay in memory. Its probably about 1 gb of data in that case, that does not get garbage collected even after visualvm forced garbage collection.
VisualVM Visual GC plugin says the memory increase is in the old gen (and the number of collections increaes after gc-forcing).
The memory sampler says the memory usage is in int arrays (int[]).Here is the link to a heap dump after leaving the server and joining and leaving a singleplayer world afterwards (vanilla 1.8.8 Minecraft client): https://www.dropbox.com/s/tec777ijdd0e1mi/heapdump-1441868645031-minecraft-map-memleak-without-optifine.7z?dl=0
After joining and leaving a singleplayer world (joining another multiplayer does not change anything), the memory usage decreases about 200mb (works only once).
Rejoining the same server with so many map data sent to the client causes the client to use up another gb of ram.
Default texture pack used.
Things I used, maybe irrelevant:
The server I am joining on is running spigot 1.8.8 behind bungeecord. The server uses the plugin AnimatedFrames where I included a gif with about 800 frames, the plugin says its about 12270 maps (as its displayed on 15 frames, 5x3). The gif I used is this one (strechted by the plugin to 640x384): http://bit.ly/1Niy1EL
![[Mojang] Grum (Erik Broes)](../../../data/assets/gravatar/grum.png){kind=small}
[Mojang] Grum (Erik Broes)is duplicated by
It's a little hard to follow your description, and any information about third-party software such as spigot or optifine is either irrelevant, or makes the issue invalid. I thought we already had an issue about this problem, but I haven't been able to find one.
You're presumably talking about the memory on the client, but your description doesn't make that clear. Also, when you say maps, I'm not sure whether you're talking about world data, such as blocks, or maps, like the item that displays the surrounding area and tells you where you are in it.
I updated the description, removed mentines of optifine (as its clearly irrelevant). Also I put maybe irrelevant things I used as I got this error into an extra part and made things clearer. (I'm not a native english speaker)
Already fixed in the snapshots
It somehow keeps the last level in memory on 1.8, kinda weird
Is there going to be any backport for this fix?