At the time this was re-added, there was concern around how the JIT would handle the system property that enabled it. This shouldn't be a problem, and as such we no longer need to block access to it. The Vanilla Method Profiler will not provide much to most users however there is no harm in providing it as an option. For most users, the recommended and supported method for determining performance issues with Paper will continue to be Timings.
63 lines
3.2 KiB
Diff
63 lines
3.2 KiB
Diff
From 52882fe0e3db0ad65c6f46e7902d9b570db2ccac Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 5 Feb 2017 00:04:04 -0500
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Subject: [PATCH] Remove CraftScheduler Async Task Debugger
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I have not once ever seen this system help debug a crash.
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One report of a suspected memory leak with the system.
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This adds additional overhead to asynchronous task dispatching
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diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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index 200d1ee7..cc4a256c 100644
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--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
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@@ -80,8 +80,8 @@ public class CraftScheduler implements BukkitScheduler {
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private final ConcurrentHashMap<Integer, CraftTask> runners = new ConcurrentHashMap<Integer, CraftTask>();
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private volatile int currentTick = -1;
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private final Executor executor = Executors.newCachedThreadPool(new com.google.common.util.concurrent.ThreadFactoryBuilder().setNameFormat("Craft Scheduler Thread - %1$d").build()); // Spigot
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- private CraftAsyncDebugger debugHead = new CraftAsyncDebugger(-1, null, null) {@Override StringBuilder debugTo(StringBuilder string) {return string;}};
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- private CraftAsyncDebugger debugTail = debugHead;
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+ //private CraftAsyncDebugger debugHead = new CraftAsyncDebugger(-1, null, null) {@Override StringBuilder debugTo(StringBuilder string) {return string;}}; // Paper
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+ //private CraftAsyncDebugger debugTail = debugHead; // Paper
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private static final int RECENT_TICKS;
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static {
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@@ -371,7 +371,7 @@ public class CraftScheduler implements BukkitScheduler {
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}
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parsePending();
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} else {
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- debugTail = debugTail.setNext(new CraftAsyncDebugger(currentTick + RECENT_TICKS, task.getOwner(), task.getTaskClass()));
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+ //debugTail = debugTail.setNext(new CraftAsyncDebugger(currentTick + RECENT_TICKS, task.getOwner(), task.getTaskClass())); // Paper
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executor.execute(new ServerSchedulerReportingWrapper(task)); // Paper
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// We don't need to parse pending
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// (async tasks must live with race-conditions if they attempt to cancel between these few lines of code)
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@@ -388,7 +388,7 @@ public class CraftScheduler implements BukkitScheduler {
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pending.addAll(temp);
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temp.clear();
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MinecraftTimings.bukkitSchedulerFinishTimer.stopTiming();
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- debugHead = debugHead.getNextHead(currentTick);
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+ //debugHead = debugHead.getNextHead(currentTick); // Paper
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}
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private void addTask(final CraftTask task) {
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@@ -447,10 +447,15 @@ public class CraftScheduler implements BukkitScheduler {
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@Override
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public String toString() {
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+ // Paper start
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+ return "";
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+ /*
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int debugTick = currentTick;
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StringBuilder string = new StringBuilder("Recent tasks from ").append(debugTick - RECENT_TICKS).append('-').append(debugTick).append('{');
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debugHead.debugTo(string);
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return string.append('}').toString();
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+ */
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+ // Paper end
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}
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@Deprecated
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--
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2.14.3
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