diff --git a/sysutils.go b/sysutils.go
index 8e9e988..628a089 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -9,6 +9,7 @@ import (
 	"os"
 	"reflect"
 	"time"
+	"sync"
 	"runtime"
 	"hash/crc32"
 )
@@ -269,6 +270,15 @@ func CalcCrc32(data string) uint32 {
 	return c.Sum32()
 }
 
+func GetSyncMapSize(m sync.Map) int {
+	var size int
+	m.Range(func(key, value interface{}) bool {
+		size++
+		return true
+	})
+	return size
+}
+
 func IsDebug() bool {
 	return true
 }