Kamron Batman ee2cd1d18d feat: Adds new decay system and SkipSerialization (#2311) ... ## 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		2026-01-08 11:43:51 -08:00
..
Accounting	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Assistants	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Commands	fix: Fixes adding items with ambiguous type lookup (#2307)	2026-01-06 21:21:29 -08:00
Compression	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Configuration	chore: Updates copyright (#1448)	2023-08-09 09:09:26 -07:00
Console	feat: Adds console commands (#1714)	2024-03-30 09:40:43 -07:00
Context Menus	fix: Moves ContextMenu out of core, streamlines code, fixes bugs (#1873)	2024-07-20 21:33:23 -07:00
Engines	feat: Adds new decay system and SkipSerialization (#2311)	2026-01-08 11:43:51 -08:00
Gumps	feat: Adds grid support for the DynamicGump system (#2306)	2026-01-03 10:12:22 -08:00
Holiday Stuff	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Items	feat: Adds new decay system and SkipSerialization (#2311)	2026-01-08 11:43:51 -08:00
Migrations	fix: Moves containers/bods/traps/etc to serialization generator (#2310)	2026-01-07 21:55:55 -08:00
Misc	fix: Moves containers/bods/traps/etc to serialization generator (#2310)	2026-01-07 21:55:55 -08:00
Mobiles	feat: Adds new decay system and SkipSerialization (#2311)	2026-01-08 11:43:51 -08:00
Multis	feat: Adds new decay system and SkipSerialization (#2311)	2026-01-08 11:43:51 -08:00
Network	feat: Add spawn position caching and spiral scan optimization (#2295)	2025-12-28 02:40:21 -08:00
Regions	feat: New Jail System (#2215)	2025-07-16 20:41:21 -07:00
Skills	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Special Systems	fix: Fixes adding items with ambiguous type lookup (#2307)	2026-01-06 21:21:29 -08:00
Spells	feat: Adds new decay system and SkipSerialization (#2311)	2026-01-08 11:43:51 -08:00
Systems/JailSystem	feat: Adds size/style support to gump builders, optimizes EscapeHtml (#2257)	2025-11-23 11:35:31 -08:00
Targets	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
Text	feat: Adds size/style support to gump builders, optimizes EscapeHtml (#2257)	2025-11-23 11:35:31 -08:00
Utilities	chore: Use var everywhere (#2294)	2025-12-27 16:47:28 -08:00
World Saves	fix: Fixes adding items with ambiguous type lookup (#2307)	2026-01-06 21:21:29 -08:00
Module.cs	fix: Fixes sending packets and sidesteps a major issue with stackalloc and PGO in .NET 8 (#1607)	2023-11-21 12:18:20 -08:00
UOContent.csproj	feat: Bumps Serialization Generator for better support (#2292)	2025-12-26 14:27:24 -08:00