Massive amount of Heap used when opening a world - NVidia issue ?

Memory: 2170248 bytes (2 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)

You've run out of memory. Assign more RAM , see MC-12949

Maybe caused by something else.

Does that happen with all worlds or with a specific world ?
In that case, please ZIP and attach that world here or provide a download link on a 3rd party file hoster.

This happens to all of my worlds. I don't know if it has to do with coding or whatnot. also the game is not modded just to let you know.

Does this happen too when you create a new world (default parameters) in 15w41b and / or in 1.8.8 ?

It happens to me in 15w41b and I'm trying to make a superflat world, even installed worlds don't work as well making one.

Ok, please increase the heap by replacing -Xmx1G by -Xmx2G in the JVM options (Launcher -> Edit Profile -> tick JVM Arguments) and retry.

It worked, thanks! 😃

Ok, please do the following:

• Attach your .minecraft/options.txt here

• In a loaded world force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]) to this ticket.

Can somewhat confirm.

Minecraft Version: 1.8.8

Memory: 500470240 bytes (477 MB) / 1105010688 bytes (1053 MB) up to 2134114304 bytes (2035 MB)

Minecraft Version: 15w33c

Memory: 419663872 bytes (400 MB) / 920694784 bytes (878 MB) up to 2134114304 bytes (2035 MB)

Minecraft Version: 15w38b

Memory: 1273041016 bytes (1214 MB) / 1619591168 bytes (1544 MB) up to 2134114304 bytes (2035 MB)

Minecraft Version: 15w39c

Memory: 1750449312 bytes (1669 MB) / 2134114304 bytes (2035 MB) up to 2134114304 bytes (2035 MB)

Minecraft Version: 15w40b

Memory: 1769764768 bytes (1687 MB) / 2134114304 bytes (2035 MB) up to 2134114304 bytes (2035 MB)

Minecraft Version: 15w41b

Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Memory: 1777622680 bytes (1695 MB) / 2134114304 bytes (2035 MB) up to 2134114304 bytes (2035 MB)
OpenGL: GeForce GTX 750 Ti/PCIe/SSE2 GL version 4.5.0 NVIDIA 355.98, NVIDIA Corporation

options.txt

invertYMouse:false
mouseSensitivity:0.5070422
fov:0.0
gamma:0.5140845
saturation:0.0
renderDistance:27
guiScale:3
particles:0
bobView:true
anaglyph3d:false
maxFps:120
fboEnable:true
difficulty:2
fancyGraphics:true
ao:2
renderClouds:fast
resourcePacks:["Misa+.zip","Les Misa+ patch.zip"]
incompatibleResourcePacks:["Les Misa+ patch.zip"]
lastServer:play..com
lang:de_DE
chatVisibility:0
chatColors:true
chatLinks:true
chatLinksPrompt:true
chatOpacity:1.0
snooperEnabled:true
fullscreen:true
enableVsync:false
useVbo:false
hideServerAddress:false
advancedItemTooltips:false
pauseOnLostFocus:false
touchscreen:false
overrideWidth:0
overrideHeight:0
heldItemTooltips:true
chatHeightFocused:1.0
chatHeightUnfocused:0.44366196
chatScale:1.0
chatWidth:1.0
showInventoryAchievementHint:false
mipmapLevels:4
streamBytesPerPixel:0.5
streamMicVolume:1.0
streamSystemVolume:1.0
streamKbps:0.5412844
streamFps:0.31690142
streamCompression:1
streamSendMetadata:true
streamPreferredServer:
streamChatEnabled:0
streamChatUserFilter:0
streamMicToggleBehavior:0
forceUnicodeFont:false
allowBlockAlternatives:true
reducedDebugInfo:false
useNativeTransport:true
entityShadows:true
key_key.attack:-100
...
soundCategory_master:1.0
soundCategory_music:0.57746476
soundCategory_record:1.0
soundCategory_weather:1.0
soundCategory_block:1.0
soundCategory_hostile:1.0
soundCategory_neutral:1.0
soundCategory_player:1.0
soundCategory_ambient:1.0
modelPart_cape:true
modelPart_jacket:true
modelPart_left_sleeve:true
modelPart_right_sleeve:true
modelPart_left_pants_leg:true
modelPart_right_pants_leg:true
modelPart_hat:true

Options.txt

invertYMouse:false
mouseSensitivity:0.5
fov:0.35
gamma:100.0
saturation:0.0
renderDistance:27
guiScale:0
particles:1
bobView:true
anaglyph3d:false
maxFps:260
fboEnable:true
difficulty:0
fancyGraphics:true
ao:0
renderClouds:fast
resourcePacks:[]
lastServer:
lang:en_US
chatVisibility:0
chatColors:true
chatLinks:true
chatLinksPrompt:true
chatOpacity:1.0
snooperEnabled:true
fullscreen:false
enableVsync:false
useVbo:false
hideServerAddress:false
advancedItemTooltips:false
pauseOnLostFocus:true
touchscreen:false
overrideWidth:0
overrideHeight:0
heldItemTooltips:true
chatHeightFocused:1.0
chatHeightUnfocused:0.44366196
chatScale:1.0
chatWidth:1.0
showInventoryAchievementHint:false
mipmapLevels:4
streamBytesPerPixel:0.5
streamMicVolume:1.0
streamSystemVolume:1.0
streamKbps:0.5412844
streamFps:0.31690142
streamCompression:1
streamSendMetadata:true
streamPreferredServer:
streamChatEnabled:0
streamChatUserFilter:0
streamMicToggleBehavior:0
forceUnicodeFont:false
allowBlockAlternatives:true
reducedDebugInfo:false
useNativeTransport:true
entityShadows:true
key_key.attack:-100
key_key.use:-99
key_key.forward:17
key_key.left:30
key_key.back:31
key_key.right:32
key_key.jump:57
key_key.sneak:-97
key_key.sprint:-96
key_key.drop:16
key_key.inventory:18
key_key.chat:52
key_key.playerlist:15
key_key.pickItem:-98
key_key.command:53
key_key.screenshot:60
key_key.togglePerspective:63
key_key.smoothCamera:0
key_key.streamStartStop:64
key_key.streamPauseUnpause:65
key_key.streamCommercial:0
key_key.streamToggleMic:0
key_key.fullscreen:87
key_key.spectatorOutlines:0
key_key.hotbar.1:2
key_key.hotbar.2:3
key_key.hotbar.3:4
key_key.hotbar.4:5
key_key.hotbar.5:6
key_key.hotbar.6:7
key_key.hotbar.7:8
key_key.hotbar.8:9
key_key.hotbar.9:10
key_Zoom:29
soundCategory_master:1.0
soundCategory_music:0.0
soundCategory_record:1.0
soundCategory_weather:0.0
soundCategory_block:1.0
soundCategory_hostile:1.0
soundCategory_neutral:1.0
soundCategory_player:1.0
soundCategory_ambient:0.0
modelPart_cape:true
modelPart_jacket:true
modelPart_left_sleeve:true
modelPart_right_sleeve:true
modelPart_left_pants_leg:true
modelPart_right_pants_leg:true
modelPart_hat:true

Crash:

---- Minecraft Crash Report ----
// There are four lights!

Time: 10/12/15 4:31 PM
Description: Manually triggered debug crash

java.lang.Throwable
	at bab.s(SourceFile:1636)
	at bab.as(SourceFile:931)
	at bab.a(SourceFile:379)
	at net.minecraft.client.main.Main.main(SourceFile:125)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at bii.a(SourceFile:362)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bkh['PortalCraft1987'/0, l='MpServer', x=561.50, y=4.00, z=-1473.50]]
	Chunk stats: MultiplayerChunkCache: 2809, 2809
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (553,4,-1466), Chunk: (at 9,0,6 in 34,-92; contains blocks 544,0,-1472 to 559,255,-1457), Region: (1,-3; contains chunks 32,-96 to 63,-65, blocks 512,0,-1536 to 1023,255,-1025)
	Level time: 599 game time, 599 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bkh['PortalCraft1987'/0, l='MpServer', x=561.50, y=4.00, z=-1473.50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bii.a(SourceFile:362)
	at bab.b(SourceFile:2389)
	at bab.a(SourceFile:388)
	at net.minecraft.client.main.Main.main(SourceFile:125)

-- System Details --
Details:
	Minecraft Version: 15w41b
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1912676200 bytes (1824 MB) / 2134114304 bytes (2035 MB) up to 2134114304 bytes (2035 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 15w41b
	LWJGL: 2.9.4
	OpenGL: GeForce GT 610/PCIe/SSE2 GL version 4.5.0 NVIDIA 353.62, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 4x AMD FX(tm)-4130 Quad-Core Processor

Can no longer confirm this in 15w45a. Anyone else ?

Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.