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grafana/dashboards/requests/node_modules/sync-request/test/benchmark.js

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+'use strict';
+
+const spawn = require('child_process').spawn;
+const spawnSync = require('child_process').spawnSync;
+const thenRequest = require('then-request');
+const syncRequest = require('../');
+
+const server = spawn(process.execPath, [require.resolve('./benchmark-server.js')]);
+
+setTimeout(() => {
+  let asyncDuration, syncDuration;
+  let ready = Promise.resolve(null);
+  const startAsync = Date.now();
+  for (let i = 0; i < 1000; i++) {
+    ready = ready.then(function () {
+      return thenRequest('get', 'http://localhost:3045');
+    });
+  }
+  ready.then(function () {
+    const endAsync = Date.now();
+    asyncDuration = endAsync - startAsync;
+    console.log('1000 async requests in: ' + asyncDuration);
+    const startSync = Date.now();
+    for (let i = 0; i < 500; i++) {
+      syncRequest('get', 'http://localhost:3045');
+    }
+    const endSync = Date.now();
+    syncDuration = endSync - startSync;
+    console.log('1000 sync requests in: ' + syncDuration);
+  }).then(() => {
+    server.kill();
+    if (syncDuration > (asyncDuration * 10)) {
+      console.error('This is more than 10 times slower than using async requests, that is not good enough.');
+      process.exit(1);
+    }
+    process.exit(0);
+  }, function (err) {
+    console.error(err.stack);
+    process.exit(1);
+  });
+  ready = null;
+}, 1000);