Chunk generator performance survey

[Seadragon91]

I compiled a binary with gcc 6 and clang 3.9.1. This are the result from 3 runs for every binary. Used only world no nether and no the end.

In world/world.ini changed:
PregenerateDistance to 100
Seed to 42

clang 3.9.1
1:
Min: 78,8 ch/s
Max: 101,03 ch/s
Avg: 83,15222222 ch/s
Time: 69.201 seconds

2:
Min: 79,41 ch/s
Max: 104,22 ch/s
Avg: 84,00258065 ch/s
Time: 68.312 seconds

3:
Min: 79,79 ch/s
Max: 102,2 ch/s
Avg: 83,67548387 ch/s
Time: 68.730 seconds


gcc 6
1:
Min: 92,97 ch/s
Max: 116,48 ch/s
Avg: 97,17301887 ch/s
Time: 64.038 seconds

2:
Min: 92,99 ch/s
Max: 116,94 ch/s
Avg: 97,25037736 ch/s
Time: 64.480 seconds

3.
Min: 92,99 ch/s
Max: 116,9 ch/s
Avg: 96,84740741 ch/s
Time: 64.168 seconds


As you can see gcc beats clang. I didn't changed anything in the source and added no flags.

[Seadragon91]

The question is now why. I know that there are a few warnings in the noise generator with shift left negative value and overflow. Maybe clang adds additionally checks or doing some casting with the numbers.

[NiLSPACE]

I build a new desktop last week

Code:

    [10:09:36] Chunk generator performance: 131.17 ch / sec (513 ch total)     [10:09:38] Chunk generator performance: 130.49 ch / sec (772 ch total)     [10:09:40] Chunk generator performance: 131.17 ch / sec (1039 ch total)     [10:09:42] Chunk generator performance: 131.92 ch / sec (1310 ch total)     [10:09:44] Chunk generator performance: 132.64 ch / sec (1583 ch total)     [10:09:46] Chunk generator performance: 132.15 ch / sec (1842 ch total)     [10:09:48] Chunk generator performance: 131.80 ch / sec (2101 ch total)     [10:09:50] Chunk generator performance: 132.56 ch / sec (2379 ch total)     [10:09:52] Chunk generator performance: 132.57 ch / sec (2645 ch total)

To be safe I copied the world.ini from here

[NiLSPACE]

Upgraded my CPU to a 5800X.

world.ini: Show

Code:

; This is the per-world configuration file, managing settings such as generators, simulators, and spawn points [General] Dimension=Overworld UnusedChunkCap=1000 IsDaylightCycleEnabled=1 Gamemode=0 Weather=0 WorldAgeMS=1074118 TimeInTicks=21480 [Broadcasting] BroadcastDeathMessages=0 BroadcastAchievementMessages=1 [SpawnPosition] MaxViewDistance=10 X=0.500000 Y=69.000000 Z=-7.500000 PregenerateDistance=70 [Storage] Schema=Default CompressionFactor=6 [Plants] MaxCactusHeight=3 MaxSugarcaneHeight=3 [Physics] DeepSnow=1 ShouldLavaSpawnFire=1 TNTShrapnelLevel=2 WaterSimulator=Vanilla LavaSimulator=Vanilla SandInstantFall=0 RedstoneSimulator=Incremental [Mechanics] CommandBlocksEnabled=0 PVPEnabled=1 UseChatPrefixes=1 MinNetherPortalWidth=2 MaxNetherPortalWidth=21 MinNetherPortalHeight=3 MaxNetherPortalHeight=21 [Monsters] VillagersShouldHarvestCrops=1 AnimalsOn=1 Types=bat, cavespider, chicken, cow, creeper, guardian, horse, mooshroom, ocelot, pig, rabbit, sheep, silverfish, skeleton, slime, spider, squid, wolf, zombie [Weather] MaxSunnyTicks=180000 MinSunnyTicks=12000 MaxRainTicks=24000 MinRainTicks=12000 MaxThunderStormTicks=15600 MinThunderStormTicks=3600 [LinkedWorlds] NetherWorldName=world_nether EndWorldName=world_the_end [Generator] BiomeGen=Grown ShapeGen=BiomalNoise3D CompositionGen=Biomal Finishers=RoughRavines, WormNestCaves, WaterLakes, WaterSprings, LavaLakes, LavaSprings, OreNests, Mineshafts, Trees, Villages, SinglePieceStructures: JungleTemple|WitchHut|DesertPyramid|DesertWell, TallGrass, SprinkleFoliage, Ice, Snow, Lilypads, BottomLava, DeadBushes, NaturalPatches, PreSimulator, Animals, OverworldClumpFlowers Generator=Composable BiomeGenCacheSize=16 BiomeGenMultiCacheLength=128 SeaLevel=62 BiomalNoise3DFrequencyX=40.000000 BiomalNoise3DFrequencyY=40.000000 BiomalNoise3DFrequencyZ=40.000000 BiomalNoise3DBaseFrequencyX=40.000000 BiomalNoise3DBaseFrequencyZ=40.000000 BiomalNoise3DChoiceFrequencyX=40.000000 BiomalNoise3DChoiceFrequencyY=80.000000 BiomalNoise3DChoiceFrequencyZ=40.000000 BiomalNoise3DAirThreshold=0.000000 BiomalNoise3DNumChoiceOctaves=4 BiomalNoise3DNumDensityOctaves=6 BiomalNoise3DNumBaseOctaves=6 BiomalNoise3DBaseAmplitude=1.000000 CompositionGenCacheSize=64 RoughRavinesGridSize=256 RoughRavinesMaxOffset=128 RoughRavinesMaxSize=128 RoughRavinesMinSize=64 RoughRavinesMaxCenterWidth=8.000000 RoughRavinesMinCenterWidth=2.000000 RoughRavinesMaxRoughness=0.200000 RoughRavinesMinRoughness=0.050000 RoughRavinesMaxFloorHeightEdge=8.000000 RoughRavinesMinFloorHeightEdge=30.000000 RoughRavinesMaxFloorHeightCenter=20.000000 RoughRavinesMinFloorHeightCenter=6.000000 RoughRavinesMaxCeilingHeightEdge=56.000000 RoughRavinesMinCeilingHeightEdge=38.000000 RoughRavinesMaxCeilingHeightCenter=58.000000 RoughRavinesMinCeilingHeightCenter=36.000000 WormNestCavesSize=64 WormNestCavesGrid=96 WormNestMaxOffset=32 WaterLakesProbability=25 LavaLakesProbability=10 MineShaftsGridSize=512 MineShaftsMaxOffset=256 MineShaftsMaxSystemSize=160 MineShaftsChanceCorridor=600 MineShaftsChanceCrossing=200 MineShaftsChanceStaircase=200 VillageGridSize=384 VillageMaxOffset=128 VillageMaxDepth=2 VillageMaxSize=128 VillageMinDensity=50 VillageMaxDensity=80 VillagePrefabs=PlainsVillage, SandVillage BottomLavaLevel=10 PreSimulatorFallingBlocks=1 PreSimulatorWater=1 PreSimulatorLava=1 OverworldClumpFlowers-1=Forest, -2, 2; ForestHills, -3, 2; FlowerForest = yellowflower; redflower; lilac; rosebush OverworldClumpFlowers-2=Plains, -2, 1; SunflowerPlains = yellowflower; redflower; azurebluet; redtulip; orangetulip; whitetulip; pinktulip; oxeyedaisy OverworldClumpFlowers-3=SunflowerPlains, 1, 2 = sunflower OverworldClumpFlowers-4=FlowerForest, 2, 5 = allium; redtulip; orangetulip; whitetulip; pinktulip; oxeyedaisy OverworldClumpFlowers-5=Swampland; SwamplandM = brownmushroom; redmushroom; blueorchid OverworldClumpFlowers-6=MushroomIsland; MushroomShore; MegaTaiga; MegaTaigaHills; MegaSpruceTaiga; MegaSpruceTaigaHills = brownmushroom; redmushroom OverworldClumpFlowers-7=RoofedForest, 1, 5; RoofedForestM, 1, 5 = rosebush; peony; lilac; grass [WaterSimulator] Falloff=1 TickDelay=5 NumNeighborsForSource=2 [LavaSimulator] Falloff=2 TickDelay=30 NumNeighborsForSource=-1 [FireSimulator] BurnStepTimeFuel=500 BurnStepTimeNonfuel=100 Flammability=50 ReplaceFuelChance=50000 [Seed] Seed=768054009 [WaterSprings] HeightDistribution=0, 0; 10, 10; 11, 75; 16, 83; 20, 83; 24, 78; 32, 62; 40, 40; 44, 15; 48, 7; 56, 2; 64, 1; 255, 0 Chance=24 [LavaSprings] HeightDistribution=0, 0; 10, 5; 11, 45; 48, 2; 64, 1; 255, 0 Chance=9 [Animals] AnimalSpawnChunkPercentage=10 [SpawnProtect] ProtectRadius=10 [Difficulty] WorldDifficulty=1 [WorldLimit] LimitRadius=0

Ryzen 5 2600X: Show

Code:

[16:12:47] Chunk generator performance: 133.49 ch / sec (513 ch total) [16:12:49] Chunk generator performance: 133.33 ch / sec (780 ch total) [16:12:51] Chunk generator performance: 132.65 ch / sec (1042 ch total) [16:12:53] Chunk generator performance: 132.54 ch / sec (1307 ch total) [16:12:55] Chunk generator performance: 132.15 ch / sec (1568 ch total) [16:12:57] Chunk generator performance: 132.42 ch / sec (1837 ch total) [16:12:59] Chunk generator performance: 133.18 ch / sec (2115 ch total) [16:13:01] Chunk generator performance: 133.12 ch / sec (2381 ch total) [16:13:03] Chunk generator performance: 133.67 ch / sec (2659 ch total) [16:13:05] Chunk generator performance: 133.35 ch / sec (2920 ch total) [16:13:07] Chunk generator performance: 133.14 ch / sec (3182 ch total) [16:13:09] Chunk generator performance: 133.53 ch / sec (3459 ch total) [16:13:11] Chunk generator performance: 133.51 ch / sec (3727 ch total) [16:13:13] Chunk generator performance: 133.51 ch / sec (3995 ch total) [16:13:15] Chunk generator performance: 133.57 ch / sec (4265 ch total) [16:13:17] Chunk generator performance: 133.99 ch / sec (4547 ch total) [16:13:19] Chunk generator performance: 134.13 ch / sec (4821 ch total) [16:13:21] Chunk generator performance: 134.29 ch / sec (5096 ch total)

Ryzen 7 5800X: Show

Code:

[18:26:38] Chunk generator performance: 174.97 ch / sec (513 ch total) [18:26:40] Chunk generator performance: 174.16 ch / sec (860 ch total) [18:26:42] Chunk generator performance: 173.94 ch / sec (1208 ch total) [18:26:44] Chunk generator performance: 173.50 ch / sec (1553 ch total) [18:26:46] Chunk generator performance: 174.29 ch / sec (1909 ch total) [18:26:48] Chunk generator performance: 174.90 ch / sec (2267 ch total) [18:26:50] Chunk generator performance: 175.52 ch / sec (2627 ch total) [18:26:52] Chunk generator performance: 175.13 ch / sec (2972 ch total) [18:26:54] Chunk generator performance: 174.92 ch / sec (3319 ch total) [18:26:56] Chunk generator performance: 175.39 ch / sec (3679 ch total) [18:26:58] Chunk generator performance: 175.30 ch / sec (4028 ch total) [18:27:00] Chunk generator performance: 175.78 ch / sec (4392 ch total) [18:27:02] Chunk generator performance: 176.44 ch / sec (4762 ch total) [18:27:04] Chunk generator performance: 176.74 ch / sec (5124 ch total)

[tigerw]

Nice, good to see that there haven't been any regressions from 2018! Congrats on actually finding stock for the processor...

[NiLSPACE]

The 5600X and 5800X can easily be found at MSRP here in The Netherlands. The 5900X and 5950X on the other hand...