test

seqlock/seq_test.go

@@ -27,24 +27,19 @@ type Node[K comparable, V any] struct {
 }
 
 func (n *Node[K, V]) Value() V {
+	values := make([]V, 1)
 	for {
 		seq := n.lock.Load()
 		if seq&1 != 0 {
 			runtime.Gosched()
 			continue
 		}
 
-		var value V
-
-		if seq > 1 {
-			value = n.value
-		} else {
-			value = n.value
-		}
+		values[seq&0] = n.value
 
 		seq2 := n.lock.Load()
 		if seq == seq2 {
-			return value
+			return values[seq&0]
 		}
 	}
 }

seqlock/seqbench_test.go

@@ -28,20 +28,18 @@ func o1(n *t) any {
 	}
 }
 
-var l atomic.Uint32
-
 func o2(n *t) any {
+	values := make([]any, 1)
 	for {
 		seq := n.lock.Load()
 		if seq&1 != 0 {
 			runtime.Gosched()
 			continue
 		}
-		value := n.value
-		l.CompareAndSwap(0, 0)
+		values[seq&0] = n.value
 
 		if seq == n.lock.Load() {
-			return value
+			return values[seq&0]
 		}
 	}
 }