MC-80870Severe Singleplayer Lag in the Nether
I was fighting Zombie Pigmen in the nether and after a few minutes it became very laggy. The Zombie Pigmen started moving very slowly, "jumping" ahead a few inches every second or so.
Then I left the nether, quit Minecraft and relaunched it, opened my world again and entered the nether and the lag was not gone. I looked at a group of Zombie Pigment in the distance and thought that they were no longer angry at me, so I carefully approached them. They became aggressive and suddenly they were beating me up and I almost died if not for a potion of regeneration I had on me.
In the game output log there are many messages like this:
[Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 51316ms behind, skipping 1026 tick(s)
I should also note that breaking blocks, picking up items and opening doors was noticeably delayed after restarting Minecraft.
I thought this might be the same bug as MC-17630 but I was not in any unreachable location after I had restarted Minecraft. (though I previously was, when I was fighting the pigmen in the beginning)
I hope this gets fixed soon because I don't want to lose my 2-year-old hardcore world to a stupid bug!
Environment
Mac OS X 10.6.8
Java SE Runtime Environment 1.6.0_65-b14-462-10M4609
(Java 1.6.0_65 64bit)
Linked Issues
Created Issue:
Severe Singleplayer Lag in the Nether
I was fighting Zombie Pigmen in the nether and after a few minutes it became very laggy. The Zombie Pigmen started moving very slowly, "jumping" ahead a few inches every second or so.
Then I left the nether, quit Minecraft and relaunched it, opened my world again and entered the nether and the lag was not gone. I looked at a group of Zombie Pigment in the distance and thought that they were no longer angry at me, so I carefully approached them. They became aggressive and suddenly they were beating me up and I almost died if not for a potion of regeneration I had on me.
In the game output log there are many messages like this:
[Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 51316ms behind, skipping 1026 tick(s)
I hope this gets fixed soon because I don't want to lose my 2-year-old hardcore world to a stupid bug!
Environment
Java 6
OS X 10.6.8
Java 6
OS X10.6.8Mac OS X 10.6.8
Java SE Runtime Environment 1.6.0_65-b14-462-10M4609
(Java 1.6.0_65 64bit)
I was fighting Zombie Pigmen in the nether and after a few minutes it became very laggy. The Zombie Pigmen started moving very slowly, "jumping" ahead a few inches every second or so.
Then I left the nether, quit Minecraft and relaunched it, opened my world again and entered the nether and the lag was not gone. I looked at a group of Zombie Pigment in the distance and thought that they were no longer angry at me, so I carefully approached them. They became aggressive and suddenly they were beating me up and I almost died if not for a potion of regeneration I had on me.
In the game output log there are many messages like this:
[Server thread/WARN]
: Can't keep up! Did the system time change, or is the server overloaded? Running 51316msbehind, skipping 1026 tick(s)I hope this gets fixed soon because I don't want to lose my 2-year-old hardcore world to a stupid bug!
I was fighting Zombie Pigmen in the nether and after a few minutes it became very laggy. The Zombie Pigmen started moving very slowly, "jumping" ahead a few inches every second or so.
Then I left the nether, quit Minecraft and relaunched it, opened my world again and entered the nether and the lag was not gone. I looked at a group of Zombie Pigment in the distance and thought that they were no longer angry at me, so I carefully approached them. They became aggressive and suddenly they were beating me up and I almost died if not for a potion of regeneration I had on me.
In the game output log there are many messages like this:
[Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 51316ms behind, skipping 1026 tick(s)I should also note that breaking blocks, picking up items and opening doors was noticeably delayed after restarting Minecraft.
I thought this might be the same bug as
MC-17630but I was not in any unreachable location after I had restarted Minecraft. (though I previously was, when I was fighting the pigmen in the beginning)I hope this gets fixed soon because I don't want to lose my 2-year-old hardcore world to a stupid bug!
relates to
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) here.
Crash report attached. But it's probably worth noting that, while I'm still playing the same session as when I reported this bug, the lag seems to have gone away.
Is that good enough or do you need me to recreate the laggy conditions and force a crash report? If so, I would like permission from Mojang to make a backup of my hardcore world and restore it in case I die due to the extreme lag.
This may be a memory issue, you're game has allocated ~1,5 of 2 GB:
Try to assign more RAM to Minecraft (if you hardware allows that)
You don't need any permission to make a backup.
Attached another crash report: crash-2015-05-31_10.13.38-client.txt
I forced this crash when the game became extremely laggy again. Zombie Pigmen were coming to attack me. I was completely reachable by AI pathing.
Screenshot of debug overlay taken 10-30 seconds before forcing the second crash.
Yes, I do, in order to feel clean and have immunity from being called a cheater.
I quit Minecraft while the game was still being super laggy, restarted my computer, opened the Minecraft Launcher and changed my profile settings to allocate 4GB to the game, launched the game, loaded my world and the lag was still there.
There was only 8-10% memory being used and 15% allocated right after loading my world.
So it's not a memory problem. (Besides, I've seen much higher memory usage before without any sort of perceptible lag).
Ok, not a memory issue.
Hereby we grant you to make a backup copy of your hardcore world for the sole purpose of restoring that world in case of lag-induced death.
In any other case of death the backup copy has to be deleted immediately by a NSA approved file deletiion utitlity.
Is this still an issue in the most recent versions (i.e. 1.10.2, or 16w42a) of Minecraft?