chore: add pnp resolve benchmark (#71)

Author: stormslowly

benches/resolver.rs

@@ -232,6 +232,26 @@ fn bench_resolver(c: &mut Criterion) {
             });
         },
     );
+
+    let pnp_workspace = env::current_dir().unwrap().join("fixtures/pnp");
+    let root_range = 1..11;
+
+    group.bench_with_input(BenchmarkId::from_parameter("pnp resolve"), &root_range, |b, data| {
+        let runner = runtime::Runtime::new().expect("failed to create tokio runtime");
+        let oxc_resolver = Arc::new(oxc_resolver());
+
+        b.to_async(runner).iter_with_setup(
+            || {
+                oxc_resolver.clear_cache();
+            },
+            |_| async {
+                for i in data.clone() {
+                    let _ =
+                        oxc_resolver.resolve(pnp_workspace.join(format!("{i}")), "preact").await;
+                }
+            },
+        );
+    });
 }
 
 criterion_group!(resolver, bench_resolver);

src/lib.rs

@@ -171,6 +171,8 @@ impl<Fs: FileSystem + Send + Sync> ResolverGeneric<Fs> {
     /// Clear the underlying cache.
     pub fn clear_cache(&self) {
         self.cache.clear();
+        #[cfg(feature = "yarn_pnp")]
+        self.pnp_cache.clear();
     }
 
     /// Resolve `specifier` at an absolute path to a `directory`.