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opti: opti thread count in adaptiveBackOffSpinLock (#9530)

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Co-authored-by: hqbfzwang <hqbfzwang@tencent.com>
This commit is contained in:
hqbfz
2025-07-10 10:19:10 +08:00
committed by GitHub
parent 9337904cdf
commit 1a747d1472
1 changed files with 5 additions and 4 deletions
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store/src/main/java/org/apache/rocketmq/store/lock/AdaptiveBackOffSpinLockImpl.java
+5 -4
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@@ -23,6 +23,7 @@ import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
@@ -51,7 +52,7 @@ public class AdaptiveBackOffSpinLockImpl implements AdaptiveBackOffSpinLock {
private final List<AtomicInteger> tpsTable;
private final List<Map<Thread, Byte>> threadTable;
private final List<Set<Thread>> threadTable;
private int swapCriticalPoint;
@@ -65,8 +66,8 @@ public class AdaptiveBackOffSpinLockImpl implements AdaptiveBackOffSpinLock {
this.locks.put(BACK_OFF_SPIN_LOCK, new BackOffSpinLock());
this.threadTable = new ArrayList<>(2);
this.threadTable.add(new ConcurrentHashMap<>());
this.threadTable.add(new ConcurrentHashMap<>());
this.threadTable.add(ConcurrentHashMap.newKeySet());
this.threadTable.add(ConcurrentHashMap.newKeySet());
this.tpsTable = new ArrayList<>(2);
this.tpsTable.add(new AtomicInteger(0));
@@ -78,7 +79,7 @@ public class AdaptiveBackOffSpinLockImpl implements AdaptiveBackOffSpinLock {
@Override
public void lock() {
int slot = LocalTime.now().getSecond() % 2;
this.threadTable.get(slot).putIfAbsent(Thread.currentThread(), Byte.MAX_VALUE);
this.threadTable.get(slot).add(Thread.currentThread());
this.tpsTable.get(slot).getAndIncrement();
boolean state;
do {