geforkt von Mirrors/Paper
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.
44 Zeilen
2.5 KiB
Diff
44 Zeilen
2.5 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: Tue, 21 Apr 2020 01:53:22 -0700
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Subject: [PATCH] Time scoreboard search
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Plugins leaking scoreboards will make this very expensive,
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let server owners debug it easily
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diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
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index e2764186bd6b838ed5cd86c15597a08d079ef984..6b3cde6d4d1e63bec01f502f2027ee9fddac08aa 100644
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--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
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+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
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@@ -46,6 +46,7 @@ public final class MinecraftTimings {
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public static final Timing antiXrayUpdateTimer = Timings.ofSafe("anti-xray - update");
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public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
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+ public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
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private static final Map<Class<?>, String> taskNameCache = new MapMaker().weakKeys().makeMap();
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diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
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index c7ca6210d6ae37fe95068c9baa5fb654f95307e0..cad42a0f3c016bf65181e50d139ae4e2fb9158a5 100644
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--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
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+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
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@@ -113,9 +113,18 @@ public final class CraftScoreboardManager implements ScoreboardManager {
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// CraftBukkit method
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public void forAllObjectives(ObjectiveCriteria criteria, ScoreHolder holder, Consumer<ScoreAccess> consumer) {
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+ // Paper start - add timings for scoreboard search
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+ // plugins leaking scoreboards will make this very expensive, let server owners debug it easily
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+ co.aikar.timings.MinecraftTimings.scoreboardScoreSearch.startTimingIfSync();
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+ try {
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+ // Paper end - add timings for scoreboard search
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for (CraftScoreboard scoreboard : this.scoreboards) {
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Scoreboard board = scoreboard.board;
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board.forAllObjectives(criteria, holder, (score) -> consumer.accept(score));
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}
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+ } finally { // Paper start - add timings for scoreboard search
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+ co.aikar.timings.MinecraftTimings.scoreboardScoreSearch.stopTimingIfSync();
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+ }
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+ // Paper end - add timings for scoreboard search
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}
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}
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