# OPTServer 1.1.0-beta.8 — Less Wasted Work. More Room to Play. Minecraft 1.20.1 · Forge 47.x · Java 17 ### "Note: All benchmarks above were recorded on my aging potato HDD. On a modern SSD/NVMe, the performance gains and streaming speeds will be even more dramatic." SERVER-ONLY READY (100% VANILLA CLIENT COMPATIBLE) — INSTALL THE SAME JAR ON THE CLIENT TO UNLOCK ZSTD & INTERPOLATION FOR MAXIMUM PERFORMANCE!  ## 2. Component Microbenchmarks & Traffic Reduction Native Server-Side Compression (libdeflate 1.25): Cuts chunk-packet encoding time by ~80% compared to standard direct-buffer Deflater (~455 µs -> ~89 µs/packet). Controlled 2-Way Codec Benchmark (Zstd Level 3): Reduces combined encode + decode time by ~62% compared to libdeflate + vanilla decoding (~146.7 µs -> ~55.3 µs), with only ~1.5% larger frames. Distance-Aware Entity Snapshots (~60.9% Reduction): Replaced 23,692 relative movement-packet attempts with 9,263 compact absolute snapshots during an 80.6s session (~294/s -> ~115/s), paired with up to 12-tick client interpolation. High-Speed Flight Corridor (flightchunks — ON by default): Activates automatically at  22 blocks/s (deactivates below 13 blocks/s, maintaining a 4-chunk safety radius and a ~7-chunk wide forward corridor. Suppressed 19,927 redundant chunk-forget requests during a ~50s flight session (~397 unnecessary requests avoided/s). ## 3. Core Technical Features Experimental Zombie Flock Navigation: Groups up to 128 eligible adult zombies pursuing the same target; only the 3 nearest leaders run full vanilla A^* pathfinding while followers reuse validated path segments or tail-follow, with automatic vanilla A^* fallback. Network & Memory Housekeeping: Direct-buffer compression paths eliminate packet-sized Java heap copies; selected network flushes are batched with a 2 ms delay / 128-request cap; automatic local XP-orb merging preserves Mending and pickup behavior. ## 4. Platform Support (Windows vs. Linux) Windows (64-bit / x86_64): Full native hardware-accelerated compression is bundled out-of-the-box (libdeflate 1.25 for Server-Only, and auto-negotiated Zstd level 3 for Server + Client). Linux & Other Platforms: Fully compatible with all core optimizations (Automatic Flight Corridors, Zombie Flock AI, Local XP Merging, 2ms/128-req Flush Batching, and Server + Client Distance-Aware Motion Snapshots/Interpolation). For packet compression, non-Windows platforms automatically fall back to Minecraft's built-in default compression (zlib/Deflater) paired with direct-buffer memory paths to avoid heap allocations.

# Improved: - Villager AI: Optimized pathfinding/AI logic to reduce RAM usage. - Projectile Cleanup: Any projectile shot by any mob immediately despawns upon hitting the ground. # Added: Command: /opt entitylim <N> (Default N = 40). Named projectiles/thrown items (e.g., custom Tridents) are excluded from being despawned. # How it works: - Limits active projectiles shot by a player to N. Once exceeded, the oldest projectile despawns. - Limits active projectiles shot by player-placed dispenser/machine blocks to a separate cap of N. - The limits are independent, allowing up to 2N total active projectiles per player across both sources.

# Improved: Villager AI: Optimized pathfinding/AI logic to reduce RAM usage. Projectile Cleanup: Any projectile shot by any mob immediately despawns upon hitting the ground. # Added: Command: /opt entitylim <N> (Default N = 40). Named projectiles/thrown items (e.g., custom Tridents) are excluded from being despawned. # How it works: Limits active projectiles shot by a player to N. Once exceeded, the oldest projectile despawns. Limits active projectiles shot by player-placed dispenser/machine blocks to a separate cap of N. The limits are independent, allowing up to 2N total active projectiles per player across both sources.

**Improved:** * **Villager AI:** Optimized pathfinding/AI logic to reduce RAM usage. * **Projectile Cleanup:** Any projectile shot by any mob immediately despawns upon hitting the ground. **Added:** * **Command:** `/opt entitylim <N>` (Default N = 40). * Named projectiles/thrown items (e.g., custom Tridents) are excluded from being despawned. **How it works:** * Limits active projectiles shot by a player to N. Once exceeded, the oldest projectile despawns. * Limits active projectiles shot by player-placed dispenser/machine blocks to a separate cap of N. * The limits are independent, allowing up to $2N$ total active projectiles per player across both sources.

NeoForge 1.21.1

# 📝 Easy Server OPT (ESO) - Changelog This update focuses exclusively on refactoring the underlying Event Handling architecture to strictly follow Forge Mod Loader standards. All server optimization features and logic remain 100% unchanged. ## 🔄 Refactoring Changes Automated Event Registration: Replaced manual MinecraftForge.EVENT_BUS.register() calls with Forge's @Mod.EventBusSubscriber class-level annotations across the mod. Static Event Methods: Converted all @SubscribeEvent methods to public static to comply with the automatic subscriber requirement. Config Separation: Moved all configuration loading events (Load/Reload) out of the main mod class and into ModConfig.java, utilizing the MOD event bus for cleaner architecture and separation of concerns. ## 🚀 Features Status All optimization mechanics continue to work flawlessly in the background exactly as before: ✅ TPS-based auto-optimization (Runs silently every 2 seconds). ✅ Aggressive XP merging and chunk mob limits (40 max). ✅ Server sleep/tick-pause on empty. ✅ Smart Villager AI freezing. ✅ All /opt commands.