Minecraft Snapshot 14w10a to current snaphot unnatural lag/delay

Please 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]) here.

Here you go:

---- Minecraft Crash Report ----
// Ouch. That hurt :(

Time: 3/24/14 11:25 AM
Description: Manually triggered debug crash

java.lang.Throwable
	at bfr.p(SourceFile:1467)
	at bfr.ai(SourceFile:801)
	at bfr.f(SourceFile:755)
	at net.minecraft.client.main.Main.main(SourceFile:121)


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

-- Head --
Stacktrace:
	at bqr.a(SourceFile:308)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bsv['bsteven93'/1, l='MpServer', x=-44.60, y=58.00, z=78.98]]
	Chunk stats: MultiplayerChunkCache: 441, 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: -37.00,62.00,139.00 - World: (-37,62,139), Chunk: (at 11,3,11 in -3,8; contains blocks -48,0,128 to -33,255,143), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 41153383 game time, 1000 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: 2 total; [abj['Server'/0, l='MpServer', x=-30.50, y=56.00, z=82.50], bsv['bsteven93'/1, l='MpServer', x=-44.60, y=58.00, z=78.98]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bqr.a(SourceFile:308)
	at bfr.b(SourceFile:2069)
	at bfr.f(SourceFile:764)
	at net.minecraft.client.main.Main.main(SourceFile:121)

-- System Details --
Details:
	Minecraft Version: 14w11b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 26846224 bytes (25 MB) / 111992832 bytes (106 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 14w11b
	LWJGL: 2.9.1
	OpenGL: Intel(R) HD Graphics Family GL version 3.1.0 - Build 8.15.10.2418, Intel
	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.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	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)
	Anisotropic Filtering: Off (1)

I hope this helps with the problem. I am really getting annoyed that I cannot use the full benefits in post 14w10a in my server building plans....

Edit: This is on the PC i host the server on. I will also post another comment like instructed from my laptop to do comparisons to see if there is a possible change.

Here is a report from my laptop:

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 3/24/14 11:52 AM
Description: Manually triggered debug crash

java.lang.Throwable
	at bfr.p(SourceFile:1467)
	at bfr.ai(SourceFile:801)
	at bfr.f(SourceFile:755)
	at net.minecraft.client.main.Main.main(SourceFile:121)


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

-- Head --
Stacktrace:
	at bqr.a(SourceFile:308)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bsv['bsteven93'/2, l='MpServer', x=-38.14, y=56.00, z=79.70]]
	Chunk stats: MultiplayerChunkCache: 441, 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: -37.00,62.00,139.00 - World: (-37,62,139), Chunk: (at 11,3,11 in -3,8; contains blocks -48,0,128 to -33,255,143), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 41185357 game time, 1000 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: 2 total; [abj['Server'/0, l='MpServer', x=-30.50, y=56.00, z=82.50], bsv['bsteven93'/2, l='MpServer', x=-38.14, y=56.00, z=79.70]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bqr.a(SourceFile:308)
	at bfr.b(SourceFile:2069)
	at bfr.f(SourceFile:764)
	at net.minecraft.client.main.Main.main(SourceFile:121)

-- System Details --
Details:
	Minecraft Version: 14w11b
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 56889848 bytes (54 MB) / 147062784 bytes (140 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 14w11b
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 6310 GL version 4.2.11764 Compatibility Profile Context, ATI Technologies Inc.
	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.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	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)
	Anisotropic Filtering: Off (1)

Hopefully this helps out to figure what maybe causing this problem.

On both machines:
Please update your Java to the latest version 64 bit version (1.7.0_51 or 1.8): http://www.java.com/en/download/.

• When using a 32-bit browser on a 64-bit operating system the automatic version detection will only show the 32-bit version of Java, the 64-bit version needs to be downloaded manually: http://www.java.com/en/download/manual.jsp.

Wait. Why do I have to use a 64-bit java on my pc that has the server on it if it has a 32-bit window 7 professional. but whatever as long as this issue stops.

Ok, nevermind. Most of the memory issues like your's are because of installing 32bit Java on 64bit machines (in that case Java is reporting "32 bit OS").
I really don't understand people installing 32 bit OS, there are no 32 bit CPUs in the wild anymore... Think about reinstalling your Windows to 64 bit.

Hopefully windows lets me upgrade to 64 bit.... if not well then I'm screwed aren't i? But their is one last thing that kinda confuses me.... so its a java operating system error... well why does 14w08a work perfectly fine but once I update to post 14w10a my error happens... is their some kind of change in the code that now requires 64-bit java to work? idk that is what's confusing me the most here.

The latest snapshots work too with a 32bit Java, but are more hungry for memory. With 32bit Java you have by default 0.5 GB of memory ( -Xmx512M ), with a 64 bit Java 1 GB.
But, before you mess up your system by reinstalling, please read the hints here http://hopper.minecraft.net/help/out-of-memory/ to increase the memory for Java and please report if that reduces the lag.

hmmm. that makes a lot more sense. I guess I'll just update my hardware a tad to run the latest snapshots. I rather upgrade my hardware then my software, and ty for the link I'll look into that in the future when i upgrade my hardware.

Is this still a concern in the current Minecraft version 14w21b / Launcher version 1.4.4 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.