diff --git a/benchmark/src/main/java/com/alibaba/fastjson2/benchmark/BytesAsciiCheck.java b/benchmark/src/main/java/com/alibaba/fastjson2/benchmark/BytesAsciiCheck.java
index ba5f7cd53..d50bcc6dc 100644
--- a/benchmark/src/main/java/com/alibaba/fastjson2/benchmark/BytesAsciiCheck.java
+++ b/benchmark/src/main/java/com/alibaba/fastjson2/benchmark/BytesAsciiCheck.java
@@ -70,6 +70,12 @@ public void direct(Blackhole bh) throws Throwable {
         bh.consume(hasNegatives(bytes, 0, bytes.length));
     }
 
+    @Benchmark
+    public void isASCIIChar(Blackhole bh) {
+        bh.consume(com.alibaba.fastjson2.util.IOUtils.isASCII(chars, 0, chars.length));
+    }
+
+
     @Benchmark
     public void isASCII(Blackhole bh) throws Throwable {
         bh.consume(com.alibaba.fastjson2.util.IOUtils.isASCII(bytes, 0, bytes.length));