diff --git a/ants.go b/ants.go
index 5c2248f..2968a96 100644
--- a/ants.go
+++ b/ants.go
@@ -1,8 +1,6 @@
 package ants
 
-import "math"
-
-const DEFAULT_POOL_SIZE = math.MaxInt32
+const DEFAULT_POOL_SIZE = 1000
 
 var defaultPool = NewPool(DEFAULT_POOL_SIZE)
 
@@ -21,4 +19,3 @@ func Cap() int {
 func Free() int {
 	return defaultPool.Free()
 }
-
diff --git a/ants_benchmark_test.go b/ants_benchmark_test.go
index 1ce2c52..2f65def 100644
--- a/ants_benchmark_test.go
+++ b/ants_benchmark_test.go
@@ -5,16 +5,20 @@ import (
 	"github.com/panjf2000/ants"
 )
 
-var size = 1000
-
 func BenchmarkPoolGroutine(b *testing.B) {
-	p := ants.NewPool(size)
-	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		p.Push(demoFunc)
+		ants.Push(demoFunc)
 	}
 }
 
+//func BenchmarkPoolGroutine(b *testing.B) {
+//	p := ants.NewPool(size)
+//	b.ResetTimer()
+//	for i := 0; i < b.N; i++ {
+//		p.Push(demoFunc)
+//	}
+//}
+
 func BenchmarkGoroutine(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		go demoFunc()
diff --git a/pool.go b/pool.go
index d058817..3b76159 100644
--- a/pool.go
+++ b/pool.go
@@ -22,7 +22,7 @@ type Pool struct {
 func NewPool(size int) *Pool {
 	p := &Pool{
 		capacity: int32(size),
-		tasks:    make(chan f, 1000),
+		tasks:    make(chan f, size),
 		//workers:  &sync.Pool{New: func() interface{} { return &Worker{} }},
 		workers: make(chan *Worker, size),
 		destroy: make(chan sig, runtime.GOMAXPROCS(-1)),