benchmark: add benchmark on async_hooks enabled http server

benchmark/async_hooks/http-server.js

@@ -0,0 +1,40 @@
+'use strict';
+const common = require('../common.js');
+
+const bench = common.createBenchmark(main, {
+  asyncHooks: ['init', 'before', 'after', 'all', 'disabled', 'none'],
+  connections: [50, 500]
+});
+
+function main({ asyncHooks, connections }) {
+  if (asyncHooks !== 'none') {
+    let hooks = {
+      init() {},
+      before() {},
+      after() {},
+      destroy() {},
+      promiseResolve() {}
+    };
+    if (asyncHooks !== 'all' || asyncHooks !== 'disabled') {
+      hooks = {
+        [asyncHooks]: () => {}
+      };
+    }
+    const hook = require('async_hooks').createHook(hooks);
+    if (asyncHooks !== 'disabled') {
+      hook.enable();
+    }
+  }
+  const server = require('../fixtures/simple-http-server.js')
+  .listen(common.PORT)
+  .on('listening', () => {
+    const path = '/buffer/4/4/normal/1';
+
+    bench.http({
+      connections,
+      path,
+    }, () => {
+      server.close();
+    });
+  });
+}

test/benchmark/test-benchmark-async-hooks.js

@@ -13,6 +13,8 @@ const runBenchmark = require('../common/benchmark');
 runBenchmark('async_hooks',
              [
                'method=trackingDisabled',
-               'n=10'
+               'n=10',
+               'asyncHooks=all',
+               'connections=50'
              ],
              {});