Hi,
I have bought Minecraft 1.8.3 on MAC OS X.
It has worked for a few days, and then each time I play, the game slows down and blocks after a few seconds.
I have found several advices on the web :
increase the memory parameter in a config file : done
upgrade java : done, I have the 14.9 version
uninstall/re install minecraft : done
What can I do then?
Thanks you for your help.
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Please attach the complete output of the "Launcher Log" which can be found on the second tab of the launcher.
Please attach the complete output of the "Game Output (Your Minecraft name) " which can be found on the fourth tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".

Hi,
here both log files.
Thanks for your analysis

Computer seems to be overloaded:
[23:01:59] [Server thread/INFO]: mf3003 a rejoint la partie
[23:02:57] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 58266ms behind, skipping 1165 tick(s)
While having this issue:
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.

Hi,
here the 3 log files after a crash.
In the "edit profile" menu I have increased the java parameter '-Xmn1G' but it doesn't solve the problem.
Thanks

Memory: 65136248 bytes (62 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
The memory is used up. Assign more memory to Minecraft. See MC-12949

Ok
I have replace -Xmx1G by -Xmx2G and -Xmn1G by -Xmn2G in the java settings
but the problem still remains
My Mac has 4G of RAM ; I hope it's sufficient
What can I do more?
Thanks