After opening the game, I have approx 10-15 sec of normal movement, then lag sets in. Lag seems to affect all aspects of game, i.e, turning, movement.
Related issues
duplicates
Comments


I have not had a complete crash. Straight-ahead movement with block harvesting (mining) does not seem to cause a problem, with frame rate holding at 58-60 fps. But once I start turning, frame rate starts deteriorating, often down to 0. Remaining stationary seems to allow it to re-set to normal 60fps.

BTW, how did you get 120fps? I have Max chosen in Options, but haven't seen anything higher than 60fps.

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

---- Minecraft Crash Report ----
// Sorry :(
Time: 12/15/13 10:23 PM
Description: Manually triggered debug crash
java.lang.Throwable
at azi.p(SourceFile:1385)
at azi.ah(SourceFile:760)
at azi.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:152)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at bka.a(SourceFile:289)
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bkf['IronClaw68'/300, l='MpServer', x=-412.31, y=61.62, z=-464.58]]
Chunk stats: MultiplayerChunkCache: 624, 624
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-252,64,248), Chunk: (at 4,4,8 in -16,15; contains blocks -256,0,240 to -241,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 20718231 game time, 24644013 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 104 total; [uv['Bat'/27916, l='MpServer', x=-413.77, y=20.11, z=-517.83], wq['Creeper'/15779, l='MpServer', x=-407.69, y=60.00, z=-464.50], xe['Spider'/15777, l='MpServer', x=-433.16, y=67.00, z=-452.19], wq['Creeper'/25731, l='MpServer', x=-429.50, y=63.00, z=-420.50], xc['Skeleton'/21988, l='MpServer', x=-463.50, y=64.00, z=-517.50], uv['Bat'/24809, l='MpServer', x=-478.25, y=26.10, z=-402.53], bkf['IronClaw68'/300, l='MpServer', x=-412.31, y=61.62, z=-464.58], uv['Bat'/31053, l='MpServer', x=-400.96, y=34.88, z=-525.07], xe['Spider'/28170, l='MpServer', x=-493.50, y=64.00, z=-538.50], wq['Creeper'/16572, l='MpServer', x=-400.50, y=36.00, z=-471.84], xe['Spider'/28169, l='MpServer', x=-492.22, y=64.00, z=-536.53], vj['Squid'/33305, l='MpServer', x=-457.41, y=58.13, z=-405.50], xh['Zombie'/28174, l='MpServer', x=-483.22, y=64.00, z=-529.84], vj['Squid'/33304, l='MpServer', x=-450.59, y=59.22, z=-410.81], wq['Creeper'/16571, l='MpServer', x=-400.70, y=35.00, z=-472.61], vj['Squid'/33307, l='MpServer', x=-467.25, y=58.75, z=-410.84], vj['Squid'/33306, l='MpServer', x=-462.38, y=56.25, z=-412.97], wq['Creeper'/23076, l='MpServer', x=-439.91, y=27.00, z=-521.22], xe['Spider'/28163, l='MpServer', x=-336.53, y=64.00, z=-468.28], xh['Zombie'/21409, l='MpServer', x=-347.50, y=34.00, z=-466.50], vj['Squid'/27193, l='MpServer', x=-454.22, y=62.34, z=-410.50], vj['Squid'/27195, l='MpServer', x=-460.50, y=60.34, z=-416.66], vj['Squid'/27196, l='MpServer', x=-463.81, y=60.22, z=-411.97], xc['Skeleton'/31507, l='MpServer', x=-382.50, y=69.00, z=-415.50], xc['Skeleton'/31508, l='MpServer', x=-382.50, y=69.00, z=-414.50], xc['Skeleton'/31509, l='MpServer', x=-385.50, y=69.00, z=-419.50], xe['Spider'/31511, l='MpServer', x=-384.28, y=69.00, z=-408.91], xd['Slime'/380, l='MpServer', x=-441.63, y=66.17, z=-454.38], xd['Slime'/379, l='MpServer', x=-435.32, y=24.00, z=-541.69], vf['Pig'/356, l='MpServer', x=-470.75, y=64.00, z=-536.31], ux['Chicken'/362, l='MpServer', x=-466.50, y=30.00, z=-398.50], vf['Pig'/408, l='MpServer', x=-433.91, y=64.00, z=-402.84], uv['Bat'/33725, l='MpServer', x=-450.42, y=25.37, z=-446.75], vf['Pig'/403, l='MpServer', x=-423.31, y=64.00, z=-513.75], uv['Bat'/33726, l='MpServer', x=-446.95, y=27.00, z=-449.55], xd['Slime'/401, l='MpServer', x=-417.70, y=24.00, z=-534.70], wq['Creeper'/32415, l='MpServer', x=-454.50, y=30.00, z=-399.50], wq['Creeper'/32414, l='MpServer', x=-454.50, y=30.00, z=-400.50], vf['Pig'/397, l='MpServer', x=-429.22, y=64.00, z=-386.34], vf['Pig'/386, l='MpServer', x=-438.25, y=63.00, z=-418.63], xc['Skeleton'/17493, l='MpServer', x=-379.09, y=38.00, z=-425.41], xh['Zombie'/32433, l='MpServer', x=-343.50, y=16.00, z=-496.50], xh['Zombie'/32432, l='MpServer', x=-344.50, y=16.00, z=-496.50], ux['Chicken'/441, l='MpServer', x=-368.44, y=63.00, z=-478.13], ux['Chicken'/442, l='MpServer', x=-371.88, y=63.00, z=-477.72], uv['Bat'/24001, l='MpServer', x=-461.66, y=39.42, z=-415.41], ux['Chicken'/443, l='MpServer', x=-368.47, y=63.00, z=-473.81], ux['Chicken'/444, l='MpServer', x=-377.19, y=63.00, z=-476.47], ux['Chicken'/445, l='MpServer', x=-375.81, y=63.00, z=-474.59], ux['Chicken'/446, l='MpServer', x=-368.59, y=63.00, z=-476.41], wq['Creeper'/15204, l='MpServer', x=-489.50, y=64.00, z=-413.50], ux['Chicken'/447, l='MpServer', x=-368.56, y=63.00, z=-475.56], ux['Chicken'/432, l='MpServer', x=-376.84, y=63.00, z=-482.19], ux['Chicken'/433, l='MpServer', x=-370.47, y=63.00, z=-481.47], ux['Chicken'/434, l='MpServer', x=-368.59, y=63.00, z=-482.06], ux['Chicken'/435, l='MpServer', x=-376.19, y=63.00, z=-482.19], ux['Chicken'/436, l='MpServer', x=-375.84, y=63.00, z=-475.66], ux['Chicken'/437, l='MpServer', x=-375.25, y=63.00, z=-475.13], uv['Bat'/29560, l='MpServer', x=-350.38, y=38.67, z=-441.50], ux['Chicken'/438, l='MpServer', x=-374.38, y=63.00, z=-480.91], wq['Creeper'/28993, l='MpServer', x=-453.50, y=64.00, z=-455.50], wb['item.item.slimeball'/21833, l='MpServer', x=-437.25, y=58.13, z=-508.56], ux['Chicken'/427, l='MpServer', x=-371.63, y=63.00, z=-481.25], xd['Slime'/426, l='MpServer', x=-383.63, y=62.00, z=-516.63], ux['Chicken'/429, l='MpServer', x=-379.47, y=63.00, z=-474.63], uv['Bat'/29538, l='MpServer', x=-349.25, y=17.10, z=-471.75], ux['Chicken'/428, l='MpServer', x=-377.19, y=63.00, z=-481.53], ux['Chicken'/431, l='MpServer', x=-369.22, y=63.00, z=-481.44], ux['Chicken'/430, l='MpServer', x=-370.28, y=63.00, z=-482.19], wb['item.item.slimeball'/21827, l='MpServer', x=-440.75, y=58.13, z=-507.41], wb['item.item.slimeball'/21826, l='MpServer', x=-438.22, y=58.13, z=-505.44], wb['item.item.slimeball'/21830, l='MpServer', x=-441.50, y=58.13, z=-509.38], wb['item.item.slimeball'/21829, l='MpServer', x=-439.16, y=58.13, z=-506.44], xd['Slime'/33930, l='MpServer', x=-413.59, y=64.00, z=-487.61], wb['item.item.slimeball'/21823, l='MpServer', x=-440.75, y=58.13, z=-511.84], xc['Skeleton'/34205, l='MpServer', x=-340.50, y=64.00, z=-497.50], ux['Chicken'/470, l='MpServer', x=-376.41, y=63.00, z=-473.81], wq['Creeper'/28991, l='MpServer', x=-459.50, y=64.00, z=-459.50], ux['Chicken'/471, l='MpServer', x=-367.81, y=63.00, z=-474.53], xc['Skeleton'/28988, l='MpServer', x=-457.50, y=64.00, z=-460.50], ux['Chicken'/469, l='MpServer', x=-367.81, y=63.00, z=-480.66], xc['Skeleton'/28987, l='MpServer', x=-458.50, y=64.00, z=-456.50], ux['Chicken'/456, l='MpServer', x=-371.13, y=63.00, z=-480.75], ux['Chicken'/455, l='MpServer', x=-376.59, y=63.00, z=-474.34], xe['Spider'/28974, l='MpServer', x=-374.75, y=64.00, z=-517.00], ux['Chicken'/454, l='MpServer', x=-371.06, y=63.00, z=-475.44], xe['Spider'/28973, l='MpServer', x=-371.28, y=64.00, z=-503.72], ux['Chicken'/453, l='MpServer', x=-371.47, y=63.00, z=-481.94], ux['Chicken'/452, l='MpServer', x=-376.38, y=63.00, z=-475.19], ux['Chicken'/451, l='MpServer', x=-376.31, y=63.00, z=-481.53], ux['Chicken'/450, l='MpServer', x=-377.19, y=63.00, z=-474.47], ux['Chicken'/449, l='MpServer', x=-369.88, y=63.00, z=-474.03], ux['Chicken'/448, l='MpServer', x=-375.75, y=63.00, z=-473.81], xc['Skeleton'/19878, l='MpServer', x=-424.31, y=21.00, z=-532.50], xh['Zombie'/28954, l='MpServer', x=-425.50, y=20.00, z=-410.50], wq['Creeper'/28146, l='MpServer', x=-486.50, y=23.00, z=-449.50], xh['Zombie'/25723, l='MpServer', x=-365.50, y=63.00, z=-467.50], xh['Zombie'/28148, l='MpServer', x=-484.50, y=23.00, z=-447.50], xc['Skeleton'/28149, l='MpServer', x=-484.50, y=23.00, z=-448.50], wq['Creeper'/34210, l='MpServer', x=-342.50, y=64.00, z=-498.50], xh['Zombie'/28156, l='MpServer', x=-380.50, y=63.00, z=-525.50], xd['Slime'/483, l='MpServer', x=-349.32, y=60.00, z=-481.31], xh['Zombie'/28157, l='MpServer', x=-335.50, y=18.00, z=-455.50], xd['Slime'/482, l='MpServer', x=-350.35, y=39.00, z=-488.31]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bka.a(SourceFile:289)
at azi.b(SourceFile:1952)
at azi.f(SourceFile:720)
at net.minecraft.client.main.Main.main(SourceFile:152)
-- System Details --
Details:
Minecraft Version: 1.7.4
Operating System: Mac OS X (x86_64) version 10.8.5
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 131109400 bytes (125 MB) / 375291904 bytes (357 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 1 total; -Xmx1G
AABB Pool Size: 5603 (313768 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
Launched Version: 1.7.4
LWJGL: 2.9.1
OpenGL: ATI Radeon HD 4850 OpenGL Engine GL version 2.1 ATI-8.16.74, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object 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)
Vec3 Pool Size: 1081 (60536 bytes; 0 MB) allocated, 25 (1400 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

Took a while longer than I had recently been experiencing for frame rate to deteriorate after I entered game to induce the crash. Not sure I initiated crash before frame rate recovered…. Thanks for the effort at troubleshooting, tho'.

Here's another crash report. Frame rate was holding at 4-5 fps when crash initiated.
---- Minecraft Crash Report ----
// There are four lights!
Time: 12/15/13 10:35 PM
Description: Manually triggered debug crash
java.lang.Throwable
at azi.p(SourceFile:1385)
at azi.ah(SourceFile:760)
at azi.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:152)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at bka.a(SourceFile:289)
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bkf['IronClaw68'/280, l='MpServer', x=-413.80, y=61.62, z=-464.72]]
Chunk stats: MultiplayerChunkCache: 624, 624
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-252,64,248), Chunk: (at 4,4,8 in -16,15; contains blocks -256,0,240 to -241,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 20722299 game time, 24648081 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 94 total; [xc['Skeleton'/16256, l='MpServer', x=-350.50, y=14.00, z=-470.50], wq['Creeper'/281, l='MpServer', x=-398.31, y=37.00, z=-483.69], xc['Skeleton'/17316, l='MpServer', x=-447.50, y=45.00, z=-516.50], xh['Zombie'/19816, l='MpServer', x=-338.50, y=16.00, z=-471.50], xc['Skeleton'/16555, l='MpServer', x=-474.50, y=39.00, z=-427.50], xc['Skeleton'/5466, l='MpServer', x=-465.50, y=25.00, z=-398.50], uv['Bat'/16820, l='MpServer', x=-494.75, y=23.27, z=-465.78], wq['Creeper'/17298, l='MpServer', x=-384.50, y=23.00, z=-405.50], xc['Skeleton'/17025, l='MpServer', x=-493.50, y=16.00, z=-420.50], wq['Creeper'/17299, l='MpServer', x=-384.50, y=23.00, z=-404.50], wq['Creeper'/17297, l='MpServer', x=-384.50, y=23.00, z=-406.50], xc['Skeleton'/17026, l='MpServer', x=-492.50, y=16.00, z=-422.50], xc['Skeleton'/19814, l='MpServer', x=-420.50, y=52.00, z=-532.50], wb['item.item.slimeball'/17658, l='MpServer', x=-391.66, y=62.13, z=-525.78], vj['Squid'/16316, l='MpServer', x=-475.31, y=60.22, z=-477.50], vj['Squid'/16314, l='MpServer', x=-474.16, y=61.28, z=-476.19], wb['item.item.arrow'/19725, l='MpServer', x=-362.25, y=68.13, z=-421.00], ux['Chicken'/351, l='MpServer', x=-466.50, y=30.00, z=-398.50], vf['Pig'/347, l='MpServer', x=-470.75, y=64.00, z=-536.31], uv['Bat'/18365, l='MpServer', x=-474.31, y=20.00, z=-426.06], bkf['IronClaw68'/280, l='MpServer', x=-413.80, y=61.62, z=-464.72], xh['Zombie'/20008, l='MpServer', x=-367.50, y=14.00, z=-407.50], uv['Bat'/12272, l='MpServer', x=-490.44, y=27.10, z=-391.44], xh['Zombie'/20007, l='MpServer', x=-367.50, y=14.00, z=-405.50], uv['Bat'/18509, l='MpServer', x=-477.56, y=19.56, z=-426.75], xd['Slime'/381, l='MpServer', x=-435.69, y=24.00, z=-541.69], wb['item.item.slimeball'/383, l='MpServer', x=-440.63, y=58.13, z=-511.88], uv['Bat'/13651, l='MpServer', x=-449.91, y=35.10, z=-398.28], wb['item.tile.dirt.default'/1322, l='MpServer', x=-408.81, y=63.13, z=-465.41], xe['Spider'/4751, l='MpServer', x=-442.59, y=66.92, z=-450.66], wq['Creeper'/412, l='MpServer', x=-399.13, y=37.00, z=-482.88], vf['Pig'/403, l='MpServer', x=-430.19, y=64.00, z=-386.16], xe['Spider'/400, l='MpServer', x=-440.22, y=66.00, z=-447.53], uv['Bat'/19651, l='MpServer', x=-485.59, y=33.09, z=-388.53], vf['Pig'/392, l='MpServer', x=-433.91, y=64.00, z=-402.84], vf['Pig'/398, l='MpServer', x=-416.91, y=64.00, z=-521.94], xd['Slime'/396, l='MpServer', x=-417.70, y=24.00, z=-534.70], wq['Creeper'/13983, l='MpServer', x=-403.50, y=37.00, z=-403.50], wb['item.item.slimeball'/387, l='MpServer', x=-441.59, y=58.13, z=-509.56], wb['item.item.slimeball'/386, l='MpServer', x=-438.94, y=58.13, z=-506.47], wb['item.item.slimeball'/385, l='MpServer', x=-440.50, y=58.13, z=-507.44], wb['item.item.slimeball'/384, l='MpServer', x=-438.13, y=58.13, z=-505.13], vf['Pig'/391, l='MpServer', x=-438.25, y=63.00, z=-418.63], xd['Slime'/389, l='MpServer', x=-441.63, y=66.00, z=-454.38], wb['item.item.slimeball'/388, l='MpServer', x=-437.13, y=58.13, z=-508.75], ux['Chicken'/440, l='MpServer', x=-368.56, y=63.00, z=-475.56], ux['Chicken'/441, l='MpServer', x=-375.94, y=63.00, z=-473.81], wq['Creeper'/11323, l='MpServer', x=-406.69, y=64.00, z=-403.50], ux['Chicken'/442, l='MpServer', x=-369.06, y=63.00, z=-474.53], ux['Chicken'/443, l='MpServer', x=-377.19, y=63.00, z=-474.47], ux['Chicken'/444, l='MpServer', x=-371.06, y=63.00, z=-475.44], ux['Chicken'/445, l='MpServer', x=-368.34, y=63.00, z=-474.53], xd['Slime'/11327, l='MpServer', x=-344.44, y=65.00, z=-527.53], ux['Chicken'/432, l='MpServer', x=-370.56, y=63.00, z=-481.56], ux['Chicken'/433, l='MpServer', x=-371.63, y=63.00, z=-481.25], ux['Chicken'/434, l='MpServer', x=-368.19, y=63.00, z=-477.91], ux['Chicken'/435, l='MpServer', x=-371.78, y=63.00, z=-477.78], ux['Chicken'/436, l='MpServer', x=-368.47, y=63.00, z=-473.81], ux['Chicken'/437, l='MpServer', x=-375.53, y=63.00, z=-478.38], ux['Chicken'/438, l='MpServer', x=-369.69, y=63.00, z=-481.34], ux['Chicken'/439, l='MpServer', x=-368.59, y=63.00, z=-476.41], ux['Chicken'/425, l='MpServer', x=-368.59, y=63.00, z=-482.06], ux['Chicken'/424, l='MpServer', x=-376.53, y=63.00, z=-482.19], ux['Chicken'/427, l='MpServer', x=-375.91, y=63.00, z=-481.16], ux['Chicken'/426, l='MpServer', x=-375.91, y=63.00, z=-482.19], ux['Chicken'/429, l='MpServer', x=-373.53, y=63.00, z=-481.44], ux['Chicken'/428, l='MpServer', x=-376.53, y=63.00, z=-481.47], ux['Chicken'/431, l='MpServer', x=-369.06, y=63.00, z=-481.56], ux['Chicken'/430, l='MpServer', x=-371.47, y=63.00, z=-481.94], xd['Slime'/418, l='MpServer', x=-383.63, y=62.00, z=-516.63], ux['Chicken'/423, l='MpServer', x=-370.53, y=63.00, z=-482.19], ux['Chicken'/422, l='MpServer', x=-377.19, y=63.00, z=-481.19], uv['Bat'/14295, l='MpServer', x=-476.53, y=51.00, z=-512.22], uv['Bat'/14297, l='MpServer', x=-480.06, y=51.34, z=-520.50], xd['Slime'/470, l='MpServer', x=-350.69, y=39.83, z=-488.31], xd['Slime'/471, l='MpServer', x=-349.31, y=60.00, z=-481.31], ux['Chicken'/462, l='MpServer', x=-367.81, y=63.00, z=-474.53], xd['Slime'/19181, l='MpServer', x=-445.17, y=60.00, z=-511.22], ux['Chicken'/461, l='MpServer', x=-367.81, y=63.00, z=-480.66], xd['Slime'/19180, l='MpServer', x=-448.63, y=61.00, z=-508.75], xd['Slime'/19179, l='MpServer', x=-444.83, y=60.00, z=-513.00], xd['Slime'/19178, l='MpServer', x=-446.99, y=61.00, z=-513.69], uv['Bat'/11608, l='MpServer', x=-447.56, y=31.10, z=-393.34], xe['Spider'/11334, l='MpServer', x=-424.81, y=65.00, z=-494.66], ux['Chicken'/453, l='MpServer', x=-378.53, y=63.00, z=-481.41], ux['Chicken'/452, l='MpServer', x=-376.47, y=63.00, z=-476.53], ux['Chicken'/451, l='MpServer', x=-376.31, y=63.00, z=-474.44], ux['Chicken'/450, l='MpServer', x=-368.84, y=63.00, z=-478.69], ux['Chicken'/449, l='MpServer', x=-376.53, y=63.00, z=-473.81], xe['Spider'/10782, l='MpServer', x=-447.66, y=64.18, z=-485.28], xh['Zombie'/10781, l='MpServer', x=-425.00, y=62.97, z=-476.50], xh['Zombie'/10780, l='MpServer', x=-437.72, y=64.00, z=-480.13], xh['Zombie'/11842, l='MpServer', x=-435.50, y=39.00, z=-525.50], xc['Skeleton'/7988, l='MpServer', x=-365.88, y=64.00, z=-519.44]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bka.a(SourceFile:289)
at azi.b(SourceFile:1952)
at azi.f(SourceFile:720)
at net.minecraft.client.main.Main.main(SourceFile:152)
-- System Details --
Details:
Minecraft Version: 1.7.4
Operating System: Mac OS X (x86_64) version 10.8.5
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 141768952 bytes (135 MB) / 378081280 bytes (360 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 1 total; -Xmx1G
AABB Pool Size: 8779 (491624 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
Launched Version: 1.7.4
LWJGL: 2.9.1
OpenGL: ATI Radeon HD 4850 OpenGL Engine GL version 2.1 ATI-8.16.74, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object 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)
Vec3 Pool Size: 2880 (161280 bytes; 0 MB) allocated, 16 (896 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

Consider updating to OS X 10.9 (Mavericks) - it's free.

Thanks. Thought I had done it already, but obviously I haven't. It's hard for an old man to keep track of all this modern tech stuff…… Seems like it's taking forever to download Mavericks, and I had to manually look for it, as it didn't show up when I asked for Software Updates from App Store…..

On 19 December I received notification that this bug report had been resolved as a duplicate. While its being a duplicate doesn't surprise me, I believe it should be be considered "Consolidated" or "Amalgamated" rather than Resolved. I still cannot play the game due to the lag issue. I would very much like to know under which outstanding complaint my report has been folded into a Duplicate status, so that I can follow continuing Mojang efforts to actually fix the problem. I will not personally consider the issue Resolved until I can successfully play Minecraft again.
I'm having similar issues and it seems tied with other reports as well. I used to play at 120 frames but now when I play its jumping around at 30-50 which isn't bad but there is also block lag, random freezes for a second, and the memory in the top right the F3 screen is peeking out causing my game to crash after a few moments of playing