http: switch on string values

Long ago, V8 was much faster switching on string lengths than values.
That is no longer the case, so we can simplify a couple of methods.

PR-URL: https://github.com/nodejs/node/pull/18351
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Kyle Farnung <kfarnung@microsoft.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>

1 files changed, 30 insertions, 0 deletions

diff --git a/benchmark/http/set_header.js b/benchmark/http/set_header.js
new file mode 100644
index 00000000000..22de61b3f84
--- /dev/null
+++ b/benchmark/http/set_header.js
@@ -0,0 +1,30 @@
+'use strict';
+
+const common = require('../common.js');
+const { OutgoingMessage } = require('_http_outgoing');
+
+const bench = common.createBenchmark(main, {
+  value: [
+    'X-Powered-By',
+    'Vary',
+    'Set-Cookie',
+    'Content-Type',
+    'Content-Length',
+    'Connection',
+    'Transfer-Encoding'
+  ],
+  n: [1e6],
+});
+
+function main(conf) {
+  const n = +conf.n;
+  const value = conf.value;
+
+  const og = new OutgoingMessage();
+
+  bench.start();
+  for (var i = 0; i < n; i++) {
+    og.setHeader(value, '');
+  }
+  bench.end(n);
+}