ee2cd1d18d
## Summary - Replaces scan-based decay checking during world saves with an event-driven timer wheel scheduler - Removes virtual property checks from serialization hot path, achieving 6-8x faster world saves ## Changes ### DecayScheduler (new): - Timer wheel with 12 HashSet buckets (5-min intervals) + PriorityQueue for active processing - O(1) register/unregister vs O(n) scan of all items - Auto start/stop when items exist/empty - Configurable tick interval with jitter to prevent system synchronization ### Item.cs: - Added ScheduledDecayTime computed property - Added UpdateDecayRegistration() called from SetLastMoved(), property setters, AddItem()/RemoveItem() - Hooks in Visible, Movable, Spawner setters and Delete() ### World.cs: - Removed _decayQueue, EnqueueForDecay(), ProcessDecay() - ItemPersistence.Serialize() now tight loop without virtual calls ## Performance | Metric | Before | After | Improvement | |---------------|------------|-----------|-------------| | Items (230K) | 245K ticks | 34K ticks | 8x faster | | Mobiles (43K) | 56K ticks | 6K ticks | 9x faster | | Total | 302K ticks | 40K ticks | 7.5x faster | ## Configuration decay.maxItemsPerTick = 250 # Items processed per tick decay.tickInterval = 256ms # Base processing interval decay.bucketInterval = 5min # Timer wheel bucket size decay.jitterMaxMs = 25 # ±25ms tick jitter
59 lines
1.4 KiB
C#
59 lines
1.4 KiB
C#
using System;
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using System.Reflection;
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using Server.Items;
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using Server.Misc;
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using Xunit;
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namespace Server.Tests;
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[CollectionDefinition("Sequential UOContent Tests", DisableParallelization = true)]
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public class UOContentFixture : ICollectionFixture<UOContentFixture>, IDisposable
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{
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public UOContentFixture()
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{
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Core.ApplicationAssembly = Assembly.GetExecutingAssembly();
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Core.LoopContext = new EventLoopContext();
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Core.Expansion = Expansion.EJ;
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// Load Configurations
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ServerConfiguration.Load(true);
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// Load UOContent.dll into the type resolver
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ServerConfiguration.AssemblyDirectories.Add(Core.BaseDirectory);
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AssemblyHandler.LoadAssemblies(["Server.dll", "UOContent.dll"]);
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// Load Skills
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SkillsInfo.Configure();
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// Configure / Initialize
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TestMapDefinitions.ConfigureTestMapDefinitions();
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// Configure the world
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World.Configure();
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Timer.Init(0);
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// Configure Races
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RaceDefinitions.Configure();
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// Load the world
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World.Load();
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World.ExitSerializationThreads();
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DecayScheduler.Configure();
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}
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private static int _counter;
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public void Dispose()
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{
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_counter++;
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if (_counter > 1)
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{
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throw new Exception("NO!");
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}
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Timer.Init(0);
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}
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}
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