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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
43 lines
2.6 KiB
Diff
43 lines
2.6 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 435b3b6d05e00803386d123c66f961c97da83d40..9da5a6086323ff4c4fd62a035fa8f7efc3d92e38 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 distanceManagerTick = Timings.ofSafe("Distance Manager Tick"); // Paper - add timings for distance manager
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+ public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
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public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
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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 39e19bea16419b9cbe53016084b8bbf014dcb056..138407c2d4b0bc55ddb9aac5d2aa3edadda090fb 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 getScoreboardScores(ObjectiveCriteria criteria, String name, Consumer<Score> 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, name, (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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