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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.
63 lines
2.7 KiB
Diff
63 lines
2.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 6 Jul 2020 22:48:48 -0700
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Subject: [PATCH] Manually inline methods in BlockPosition
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diff --git a/src/main/java/net/minecraft/core/BlockPos.java b/src/main/java/net/minecraft/core/BlockPos.java
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index 73d7b5148e3a92c085b08303589827a6f0ae8d07..12ff8886bb53ca15db745989c25b9bd2f45335e4 100644
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--- a/src/main/java/net/minecraft/core/BlockPos.java
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+++ b/src/main/java/net/minecraft/core/BlockPos.java
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@@ -570,9 +570,9 @@ public class BlockPos extends Vec3i {
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}
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public BlockPos.MutableBlockPos set(int x, int y, int z) {
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- this.setX(x);
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- this.setY(y);
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- this.setZ(z);
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+ this.x = x; // Paper - Perf: Manually inline methods in BlockPosition
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+ this.y = y; // Paper - Perf: Manually inline methods in BlockPosition
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+ this.z = z; // Paper - Perf: Manually inline methods in BlockPosition
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return this;
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}
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@@ -637,19 +637,19 @@ public class BlockPos extends Vec3i {
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@Override
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public BlockPos.MutableBlockPos setX(int i) {
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- super.setX(i);
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+ this.x = i; // Paper - Perf: Manually inline methods in BlockPosition
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return this;
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}
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@Override
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public BlockPos.MutableBlockPos setY(int i) {
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- super.setY(i);
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+ this.y = i; // Paper - Perf: Manually inline methods in BlockPosition
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return this;
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}
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@Override
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public BlockPos.MutableBlockPos setZ(int i) {
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- super.setZ(i);
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+ this.z = i; // Paper - Perf: Manually inline methods in BlockPosition
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return this;
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}
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diff --git a/src/main/java/net/minecraft/core/Vec3i.java b/src/main/java/net/minecraft/core/Vec3i.java
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index df4c9b275752ad97a4efe9380ae0d511ee760695..02367ef1371dde94ff6c4cd40bd32e800d6ccaaf 100644
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--- a/src/main/java/net/minecraft/core/Vec3i.java
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+++ b/src/main/java/net/minecraft/core/Vec3i.java
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@@ -16,9 +16,9 @@ public class Vec3i implements Comparable<Vec3i> {
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vec -> IntStream.of(vec.getX(), vec.getY(), vec.getZ())
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);
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public static final Vec3i ZERO = new Vec3i(0, 0, 0);
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- private int x;
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- private int y;
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- private int z;
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+ protected int x; // Paper - Perf: Manually inline methods in BlockPosition; protected
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+ protected int y; // Paper - Perf: Manually inline methods in BlockPosition; protected
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+ protected int z; // Paper - Perf: Manually inline methods in BlockPosition; protected
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public static Codec<Vec3i> offsetCodec(int maxAbsValue) {
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return CODEC.validate(
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