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