I am using the Direwolf20 modpack in the FTB launcher, and I recently updated from version 5.0.1 to 5.1.1. Now, shortly after I load a world, I get MASSIVE lag, and I crash and burn. Here is the log. There seems to be an issue with java running out of memory, which makes sense, as I had major lag. There is also something in there about charge pads, and thaumcraft appears to be removing all the existing aura nodes, but i'm certainly not an expert. If someone could tell me if i'm doing anything stupid, that would be great.
yeah im having the same problem with the mindcrack an ultimate (i havent played ultimate but i know its 10 times better) it is prob an issue with java my best help is to try and install 64 bit java, or give ftb more memory under options hope this helps
I have also been having this same problem with my server. Works fine, lags, then goes out of memory crashes and burns. I went from allocating 1GB to 3GB and that made things okay for about a week then the same thing happened again. Reallocated from 3GB to 8GB and was stable again for about two weeks then same problem. I only have 5 players total on my server with 1-2 playing at a time intermittently Total world size is only around 300MB as well.
There is a persistent memory leak somewhere in here but I haven't been able to find it. Restarting the server doesn't solve it and allocating more memory only seems to delay things for a bit. I have done some research and have seen many others report on this but it seems to be happening to people even after patches. I am also running Java 64 bit, latest version, on a 64 bit machine quad core, with 16GB of memory.
I know java is efficient but does anyone have any ideas what mods are causing the problems or how to stop the leaks?
OK, I have an idea. I have a list of mods that I think may be causing the problem, and I am going to remove them until the crashes stop.Wait a minute... I recently updated to version 5.2.0 of the modpack and haven't had any crashes since. I think it was probably a known issue with one of the mods, and the update fixed it. Recap: If anyone has this problem, update to 5.2.0.
Well then, the issue is back. It turns out updating only delays the problem, which means it's back to the mod hunt for me.I don't know if this means anything, but the issue seems to be most prominent in a world that I have had for a while and play in a lot.
In The DireWolf20 Pack, Version 5.2.0, I had huge lag and memory leaks after updating. I couldn't even run MC for 5 Mins without crashing. Tried disabling certain mods, didn't help.
But anyway, here's the fix:
1. In the Launcher, open the Options tab, then 'Advanced Options'
2. In 'Additional Java Parameters', type
-XX:PermSize=128m
(must be exact)
3. Run your pack!
I know this works in the DW20 Pack not sure about others, but it should. I've used it for several hours, works fine. Haven't had any noticable memory leaks (Haven't checked logs though).
Notes: If thiws doesn't work, also know that I have Optifine installed, not sure if it affects it. I also have ChickenChuncks disabled, I did that before using the code to see if it helped (it didn't) and haven't enabled it again because Railcraft World Anchors work fine.
Thanks so much for that! At least so far (about an hour into playing), I no longer get such horrible lag and crashes. As others have said, it used to happen after mere minutes, basically making the modpack unplayable.
Out of curiosity, since I don't know much about java, what exactly does adding that parameter do?
Thanks so much for that! At least so far (about an hour into playing), I no longer get such horrible lag and crashes. As others have said, it used to happen after mere minutes, basically making the modpack unplayable.
Out of curiosity, since I don't know much about java, what exactly does adding that parameter do?
Apparently PermSize adds a separate memory space that isn't garbage collected. If it's not large enough, Java might try to move things in there that it doesn't have room for, and return an "out of memory" error.
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"I dunno, ZK, that sounds pretty awesome..." "Well then, let's get awesome!"
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I am using the Direwolf20 modpack in the FTB launcher, and I recently updated from version 5.0.1 to 5.1.1. Now, shortly after I load a world, I get MASSIVE lag, and I crash and burn. Here is the log. There seems to be an issue with java running out of memory, which makes sense, as I had major lag. There is also something in there about charge pads, and thaumcraft appears to be removing all the existing aura nodes, but i'm certainly not an expert. If someone could tell me if i'm doing anything stupid, that would be great.
Thanks in advance,
Hello_Mister
EDIT:
My Java is 64 bit.
There is a persistent memory leak somewhere in here but I haven't been able to find it. Restarting the server doesn't solve it and allocating more memory only seems to delay things for a bit. I have done some research and have seen many others report on this but it seems to be happening to people even after patches. I am also running Java 64 bit, latest version, on a 64 bit machine quad core, with 16GB of memory.
I know java is efficient but does anyone have any ideas what mods are causing the problems or how to stop the leaks?
OK, finally found a fix:
In The DireWolf20 Pack, Version 5.2.0, I had huge lag and memory leaks after updating. I couldn't even run MC for 5 Mins without crashing. Tried disabling certain mods, didn't help.
But anyway, here's the fix:
1. In the Launcher, open the Options tab, then 'Advanced Options'
2. In 'Additional Java Parameters', type
-XX:PermSize=128m
(must be exact)
3. Run your pack!
I know this works in the DW20 Pack not sure about others, but it should. I've used it for several hours, works fine. Haven't had any noticable memory leaks (Haven't checked logs though).
Notes: If thiws doesn't work, also know that I have Optifine installed, not sure if it affects it. I also have ChickenChuncks disabled, I did that before using the code to see if it helped (it didn't) and haven't enabled it again because Railcraft World Anchors work fine.
Hope this helps!
Out of curiosity, since I don't know much about java, what exactly does adding that parameter do?
Apparently PermSize adds a separate memory space that isn't garbage collected. If it's not large enough, Java might try to move things in there that it doesn't have room for, and return an "out of memory" error.
"Well then, let's get awesome!"