mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-22 10:35:38 +01:00
c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
24 lines
1.4 KiB
Diff
24 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
|
|
Date: Fri, 26 Jun 2020 22:35:08 -0700
|
|
Subject: [PATCH] Hide sync chunk writes behind flag
|
|
|
|
Syncing writes on each write call has terrible performance
|
|
on harddrives.
|
|
|
|
-DPaper.enable-sync-chunk-writes=true to enable
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
|
|
index eb27ef574445e1311b763d84aa1b37128baa75f7..d6431376184e5650b370cbab204e28bc31f4dac6 100644
|
|
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
|
|
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServerProperties.java
|
|
@@ -146,7 +146,7 @@ public class DedicatedServerProperties extends Settings<DedicatedServerPropertie
|
|
this.maxWorldSize = this.get("max-world-size", (integer) -> {
|
|
return Mth.clamp(integer, 1, 29999984);
|
|
}, 29999984);
|
|
- this.syncChunkWrites = this.get("sync-chunk-writes", true);
|
|
+ this.syncChunkWrites = this.get("sync-chunk-writes", true) && Boolean.getBoolean("Paper.enable-sync-chunk-writes"); // Paper - Hide sync chunk writes behind flag
|
|
this.regionFileComression = this.get("region-file-compression", "deflate");
|
|
this.enableJmxMonitoring = this.get("enable-jmx-monitoring", false);
|
|
this.enableStatus = this.get("enable-status", true);
|