1.7.10 java spikes

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Mindofaprodigy

New Member
Jul 29, 2019
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ive been trying to play a rather large 200+ mods as reported by FML 1.7.10 pack for a while now and it seems like it plays fine for about half an hour before java starts spiking to 100% cpu usage for a few seconds then it goes back down to normal values but each time it spikes the next spike comes quicker until its just stuck at 100% cpu usage and was wondering if anyone else was having a similar experience with 1.7.10 using java7u67 and the launcher set with 4gb of ram
 

drellen

New Member
Jul 29, 2019
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That sounds like garbage collection getting out of control. How much ram do you have allocated to the process? More is not always better...
 

jaquadro

New Member
Jul 29, 2019
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If you're dealing with a memory leak, more memory only makes the problem worse. Garbage collection times are proportional to the amount of live objects in the system, so increasing the available RAM only increases the amount of leaked objects that will be scanned.

Your only choice, other than plucking out an at-fault mod, is to restart your client every so often.
 

jaquadro

New Member
Jul 29, 2019
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4gb sounds like a lot, but I don't know your mod profile. I run a 100 mod pack with 1gb. Before I patched the Artifice leak, the game would start spiking harder and more often as I traveled around. Bumping my memory up to 1.5gb, against my better judgement, made those spikes go from bad to devastating.

Your description of progressive degradation suggests there's a leak (maybe you're jumping between dimensions a lot? That seems to be one source of it). You can confirm it by watching the memory behavior on F3, comparing how much memory drops when you start playing, and when you start noticing bad spikes. You may get a more usable game by dropping your allocation.

Edit: Dropping your allocation will probably have a negligible impact. Once the client has leaked millions of small objects, nothing is going to save it but a complete relaunch.
 
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Mindofaprodigy

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Jul 29, 2019
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the current count reported on my pack by fml is 209 mods and it happens even when im just standing at my research table from thaumcraft for long periods of time i've not found any rhyme or reason to the spikes as of yet

here is my mods folders contents and i believe im using forge 1208
1.7.10 Technomancy 0.8.1.jar
1.7.10_AM2_1.4.0.005.jar
AdventurersAmulets-1.7.10-1.4.0c.jar
airoverhaul-1.7.10_1.0.jar
AOBD-2.2.5.jar
appliedenergistics2-rv1-stable-1.jar
Automagy-1.7.10-0.10.2.jar
AutoSapling-1.1.jar
BackTools-4.0.0.jar
BiblioCraft[v1.8.2][MC1.7.10].jar
BiblioWoods[BiomesOPlenty][v1.8].jar
BiblioWoods[Forestry][v1.6].jar
BiblioWoods[Natura][v1.4].jar
BigReactors-0.4.0rc8.jar
binnie-mods-2.0-dev4.jar
BiomesOPlenty-1.7.10-2.1.0.985-universal.jar
Blood Magic-v1.2.0Beta23(1.7.10).jar
BloodArsenal-1.7.10-0.7.jar
BluePower-1.7.10-0.1.755-universal.jar
Botania r1.2-122.jar
BuildcraftAdditions-1.7.10-1.6.4.jar
Carpenter's Blocks v3.2.7 - MC 1.7.10.zip
carpentersblocks
ChickenChunks-1.7.10-1.3.4.13-universal.jar
Chisel-1.7.10-1.5.7.jar
CodeChickenCore-1.7.10-1.0.4.29-universal.jar
CoFHCore-[1.7.10]3.0.0B6-32.jar
CoFHLib-[1.7.10]1.0.0B6-26.jar
CompactSolars-1.7.10-4.4.37.314-universal.jar
ComputerCraft1.64pr4.jar
cookiecore-1.3.0.jar
CoroUtil-1.1.jar
CraftHeraldry 1.1.3.jar
DeathCounter-4.0.0.jar
denseores-1.4.2.jar
dimensional-anchor-59.0.2.jar
DimensionBookThing-1.7.10-0.00.01-universal.jar
ElectricalAge_BETA-1.9_r43.jar
ElectroMagicTools-1.7.10-2.0.0Alpha-23.jar
Enchiridion-1.7.X-1.2b.jar
EnderIO-1.7.10-2.1.0.223.jar
EnderStorage-1.7.10-1.4.5.24-universal.jar
EnderTech-1.7.10-0.3.0.348.jar
EquivalentExchange3-1.7.10-0.2.328.jar
ExtraCells-1.7.10-2.1.12b8.jar
ExtraTiC-1.7.10-1.0.3.jar
extrautilities-1.1.0k.jar
Factorization-1.7.10-0.8.88.1.jar
farlanders-1.7.10-v1.2b.jar
FlaxbeardsSteamPower-1.7.10-0.26.2.jar
Forbidden Magic-1.7.10-0.52.jar
forestry_1.7.10-3.0.0.129.jar
FoxLib-1.7.10-0.4.1.jar
funky-locomotion-1.7.10-beta-1.jar
Galacticraft-Planets-BETA-1.7-3.0.4.203.jar
GalacticraftCore-BETA-1.7-3.0.4.203.jar
Ganys End-1.8.2.jar
Ganys Nether-1.7.5.jar
Ganys Surface-1.9.2.jar
GardenStuff-1.7.10-1.2.1.jar
GearUtilities-Minecraft 1.7.10, Version 0.0.12.jar
Hats-4.0.1.jar
HatStand-4.0.0.jar
HydCraft-1.7.10-2.0-59.jar
ic2
iChunUtil-4.0.0.jar
IguanaTinkerTweaks-1.7.10-2.0.6.jar
IguanaTweaks-1.7.10-Beta-19.jar
ImLookingAtBlood-1.7.2-1.1a.jar
immibis-core-59.0.1.jar
industrialcraft-2-2.2.647-experimental.jar
InventoryTweaks-1.59-dev-152.jar
ironchest-1.7.10-6.0.56.739-universal.jar
Jabba-1.1.4_1.7.10.jar
legacyjavafixer-1.0.jar
magicalcrops-1.7.10_0.1.jar
magicbees-1.7.10-2.1.19.jar
Mantle-mc1.7.10-0.3.1.jar
Mariculture-1.7.10-1.2.3d.jar
Mekanism-1.7.10-7.1.0.92.jar
MekanismGenerators-1.7.10-7.1.0.92.jar
MekanismTools-1.7.10-7.1.0.92.jar
Metallurgy-1.7.10-4.0.4.43.jar
MetallurgyCore-1.7.10-4.0.3.11.jar
mffs-4.1.0.31-core.jar
MicdoodleCore-BETA-1.7-3.0.4.203.jar
MineFactoryReloaded-[1.7.10]2.8.0RC3-591.jar
MineTweaker3-1.7.10-3.0.9.jar
MobAmputation-4.0.0.jar
MobDismemberment-4.0.0.jar
MobiusCore-1.2.3_1.7.10.jar
mods.txt
ModularPowersuits-0.11.0.172.jar
Morph-Beta-0.9.1.jar
natura-1.7.10-2.2.0-b1.jar
neiaddons-mc1710-1.12.2.9.jar
NEIPlugins-MC1.7.10-1.1.0.8-unofficial.jar
NetherOres-[1.7.10]2.3.0RC3-84.jar
NotEnoughItems-1.7.10-1.0.3.62-universal.jar
Numina-0.4.0.98.jar
ObsidiPlates-1.7.10-universal-3.0.0.18.jar
OpenBlocks-1.7.10-1.3-snapshot-433.jar
OpenEye-0.6-1.7.10.jar
OpenModsLib-1.7.10-0.6-snapshot-224.jar
Opis-1.2.3_1.7.10.jar
Pam's HarvestCraft 1.7.10a.zip
PiP-4.0.0.jar
PneumaticCraft-1.2.6.jar
ProjectRed-Base-1.7.10-4.4.9.49.jar
ProjectRed-Compat-1.7.10-4.4.9.49.jar
ProjectRed-Integration-1.7.10-4.4.9.49.jar
ProjectRed-Lighting-1.7.10-4.4.9.49.jar
ProjectRed-Mechanical_beta-1.7.10-4.4.9.49.jar
ProjectRed-World-1.7.10-4.4.9.49.jar
QuartzAndSteel-2.12.jar
railcraft
Railcraft_1.7.10-9.3.2.0.jar
RedstoneArmory-universal-1.7.10-1.1-5.jar
RedstoneArsenal-[1.7.10]1.1.0B4-10.jar
RefinedRelocation-1.7.10-1.0.6f.jar
resonant-engine-2.0.0.83-core.jar
Sanguimancy-1.7.10-1.7.10-1.1.5-1.jar
Shatter-4.0.0.jar
slick-util.jar
SolarFlux-1.7.10-0.4b.jar
StevesCarts2.0.0.b18.jar
StevesFactoryManagerA92.jar
StevesWorkshop-0.5.1.jar
StopGap-2.0.5.jar
Sync-4.0.0.jar
Tails-1.7.10-1.0.1.jar
Talismans2-1.7.10-Beta1.0.0.jar
TConstruct-1.7.10-1.7.0d3.1.jar
Thaumcraft-1.7.10-4.2.1.3.jar
thaumicenergistics-0.6.10b.jar
ThaumicExploration-1.7.10-1.1-17.jar
ThaumicTinkerer-2.5-1.7.10-158.jar
ThermalExpansion-[1.7.10]4.0.0B5-13.jar
ThermalFoundation-[1.7.10]1.0.0B3-8.jar
thirstmod-1.8.8.jar
TMechworks-1.7.10-0.2.9.jar
Torched-4.0.0.jar
TrailMix-4.0.0.jar
Translocator-1.7.10-1.1.1.12-universal.jar
TravellersGear-1.7.10-1.6.jar
TSteelworks-1.7.10-1.0.6.jar
TWarden-1.1.1.jar
twilightforest-1.7.10-2.3.2.jar
universal-electricity-4.0.0.50-core.jar
VoxelMods
Waila-1.5.3a_1.7.10.jar
WailaHarvestability-mc1.7.x-1.1.0.jar
witchery-1.7.10-0.20.6.jar
WR-CBE-1.7.10-1.4.1.6-universal.jar
WTP-1.7.10-1.0.29.1.jar
ZombieAwareness-1.9.5.jar
 
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Wagon154

New Member
Jul 29, 2019
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If you have a FSP Exo suit, update to the latest version of Flaxbeards Steam Power. There was a memory leak with it until recently.
 

Shevron

Well-Known Member
Aug 12, 2013
838
302
78
I have noticed this on the new DW20 pack too.

Brand new server, no extra mods installed. Within half hour of newly generated world, with nobody online, CPU usage spikes to 100% and stays there.

It's a new world, so there's no chunk loaders, no nothing.
 

tedyhere

New Member
Jul 29, 2019
1,286
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I have noticed this on the new DW20 pack too.

Brand new server, no extra mods installed. Within half hour of newly generated world, with nobody online, CPU usage spikes to 100% and stays there.

It's a new world, so there's no chunk loaders, no nothing.
Just on a whim, fire up opis and see how many squids are roaming in the spawn chunkloaded region
 

tedyhere

New Member
Jul 29, 2019
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Well there goes my theory :D Our server was completely over run with squids.. caused massive lag problems.