diff --git a/priority_queue/priority_queue.go b/priority_queue/priority_queue.go
index d822c42..fea7759 100644
--- a/priority_queue/priority_queue.go
+++ b/priority_queue/priority_queue.go
@@ -30,7 +30,7 @@ type Node struct {
 // NewWithInt compare use int
 func NewWithInt() *PriorityQueue {
 	p := new(PriorityQueue)
-	p.indexlimit = 20
+	p.indexlimit = 10
 	p.comparator = func(a, b interface{}) int {
 		if a.(int) > b.(int) {
 			return 1
@@ -116,10 +116,15 @@ func (pq *PriorityQueue) Push(v interface{}) {
 
 	for i := 0; cur.next != nil; i++ {
 
-		if i >= pq.indexlimit-1 {
-			if idx.nlen >= pq.indexlimit*2 {
+		if i >= pq.indexlimit {
+
+			if idx.next != nil && idx.next.nlen < pq.indexlimit {
+				idx.next.nlen += idx.nlen - pq.indexlimit
+				idx.nlen = pq.indexlimit
+				idx.next.node = cur
+			} else {
 				index := new(Index)
-				index.node = node
+				index.node = cur
 				index.nlen = idx.nlen - pq.indexlimit
 				index.next = idx.next
 
@@ -128,6 +133,7 @@ func (pq *PriorityQueue) Push(v interface{}) {
 				idx = index
 				i = 0
 			}
+
 		}
 
 		if pq.comparator(v, cur.next.value) > 0 {
diff --git a/priority_queue/priority_queue_test.go b/priority_queue/priority_queue_test.go
index 20617c6..2a88264 100644
--- a/priority_queue/priority_queue_test.go
+++ b/priority_queue/priority_queue_test.go
@@ -37,7 +37,7 @@ func TestNPQ(t *testing.T) {
 func TestPriorityQueue(t *testing.T) {
 	p := NewWithInt()
 
-	for i := 0; i < 20; i++ {
+	for i := 0; i < 100; i++ {
 		p.Push(randomdata.Number(0, 10000))
 		t.Log(p.String())
 	}
@@ -48,11 +48,12 @@ func TestPriorityQueue(t *testing.T) {
 func BenchmarkPriorityQueue(b *testing.B) {
 	p := NewWithInt()
 
-	// for i := 0; i < 100000; i++ {
+	// for i := 0; i < 10000; i++ {
 	// 	p.Push(randomdata.Number(0, 100000))
 	// 	// p.Values()
 	// }
 
+	b.N = 100000
 	for i := 0; i < b.N; i++ {
 		p.Push(randomdata.Number(0, 100000))
 	}