[Chore] Make isSleep uint32 instead of uint64

internal/queue/mpsc.go

@@ -39,8 +39,8 @@ type MPSC[T any] struct {
 	headPadding  [xruntime.CacheLineSize - 8]byte
 	tail         uint64
 	tailPadding  [xruntime.CacheLineSize - 8]byte
-	isSleep      uint64
-	sleepPadding [xruntime.CacheLineSize - 8]byte
+	isSleep      uint32
+	sleepPadding [xruntime.CacheLineSize - 4]byte
 	slots        []slot[T]
 }
 
@@ -118,15 +118,15 @@ func (q *MPSC[T]) Capacity() int {
 }
 
 func (q *MPSC[T]) wakeUpConsumer() {
-	if atomic.LoadUint64(&q.isSleep) == 1 && atomic.CompareAndSwapUint64(&q.isSleep, 1, 0) {
+	if atomic.LoadUint32(&q.isSleep) == 1 && atomic.CompareAndSwapUint32(&q.isSleep, 1, 0) {
 		// if the consumer is asleep, we'll wake him up.
 		q.sleep <- struct{}{}
 	}
 }
 
 func (q *MPSC[T]) sleepConsumer() {
 	// if the queue's been empty for too long, we fall asleep.
-	atomic.StoreUint64(&q.isSleep, 1)
+	atomic.StoreUint32(&q.isSleep, 1)
 	<-q.sleep
 }