1 files changed, 76 insertions, 0 deletions
diff --git a/bench/snippets/dns.node.mjs b/bench/snippets/dns.node.mjs
new file mode 100644
index 000000000..1a27afd0d
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+++ b/bench/snippets/dns.node.mjs
@@ -0,0 +1,76 @@
+import { lookup, resolve } from "node:dns/promises";
+import { bench, run } from "mitata";
+
+bench("(cached) dns.lookup remote x 50", async () => {
+  var tld = "example.com";
+  const run = () => lookup(tld).catch(() => {});
+  const total = 50;
+  var remain = total;
+  var done;
+  await new Promise((resolve) => {
+    for (var i = 0; i < total; i++)
+      run().finally(() => {
+        remain--;
+        if (remain === 0) {
+          done();
+        }
+      });
+    done = resolve;
+  });
+});
+
+bench("(cached in batch) dns.lookup remote x 50", async () => {
+  var tld = Math.random().toString(16) + ".example.com";
+  const run = () => lookup(tld).catch(() => {});
+  const total = 50;
+  var remain = total;
+  var done;
+  await new Promise((resolve) => {
+    for (var i = 0; i < total; i++)
+      run().finally(() => {
+        remain--;
+        if (remain === 0) {
+          done();
+        }
+      });
+    done = resolve;
+  });
+});
+
+bench("dns.lookup remote x 50", async () => {
+  var remain = 50;
+  var done;
+  const run = () =>
+    lookup(Math.random().toString() + ".example.com").catch(() => {});
+
+  await new Promise((resolve) => {
+    for (var i = 0; i < 50; i++)
+      run().finally(() => {
+        remain--;
+        if (remain === 0) {
+          done();
+        }
+      });
+    done = resolve;
+  });
+});
+
+bench("dns.resolve remote x 50", async () => {
+  var remain = 50;
+  var done;
+  const run = () =>
+    resolve(Math.random().toString() + ".example.com").catch(() => {});
+
+  await new Promise((resolve) => {
+    for (var i = 0; i < 50; i++)
+      run().finally(() => {
+        remain--;
+        if (remain === 0) {
+          done();
+        }
+      });
+    done = resolve;
+  });
+});
+
+await run();