diff --git a/benches/resolver.rs b/benches/resolver.rs
index 55cd118..9fe8762 100644
--- a/benches/resolver.rs
+++ b/benches/resolver.rs
@@ -8,6 +8,7 @@ use std::{
 };
 
 use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
+use rspack_resolver::{ResolveOptions, Resolver};
 use serde_json::Value;
 use tokio::{
   runtime::{self, Builder},
@@ -91,6 +92,33 @@ fn rspack_resolver() -> rspack_resolver::Resolver {
   })
 }
 
+fn resolver_with_many_extensions() -> rspack_resolver::Resolver {
+  Resolver::new(ResolveOptions {
+    extensions: vec![
+      ".bad0".to_string(),
+      ".bad1".to_string(),
+      ".bad2".to_string(),
+      ".bad3".to_string(),
+      ".bad4".to_string(),
+      ".bad5".to_string(),
+      ".bad6".to_string(),
+      ".bad7".to_string(),
+      ".bad8".to_string(),
+      ".bad9".to_string(),
+      ".mtsx".to_string(),
+      ".mts".to_string(),
+      ".mjs".to_string(),
+      ".tsx".to_string(),
+      ".ts".to_string(),
+      ".jsx".to_string(),
+      ".js".to_string(),
+    ],
+    imports_fields: vec![],
+    exports_fields: vec![],
+    ..Default::default()
+  })
+}
+
 fn create_async_resolve_task(
   rspack_resolver: Arc<rspack_resolver::Resolver>,
   path: PathBuf,
@@ -183,6 +211,30 @@ fn bench_resolver(c: &mut Criterion) {
     },
   );
 
+  group.bench_with_input(
+    BenchmarkId::from_parameter("[single-threaded]resolve with many extensions"),
+    &data,
+    |b, data| {
+      let runner = runtime::Builder::new_current_thread()
+        .build()
+        .expect("failed to create tokio runtime");
+      let rspack_resolver = resolver_with_many_extensions();
+
+      b.to_async(runner).iter_with_setup(
+        || {
+          rspack_resolver.clear_cache();
+        },
+        |_| async {
+          for (path, request) in data {
+            _ = rspack_resolver
+              .resolve(path, &format!("{}/bad", request))
+              .await;
+          }
+        },
+      );
+    },
+  );
+
   group.bench_with_input(
     BenchmarkId::from_parameter("multi-thread"),
     &data,