From c8df0a85ba2f1312b8675b7864162aac68a59dc9 Mon Sep 17 00:00:00 2001
From: murgatroid99 <mlumish@google.com>
Date: Wed, 11 Feb 2015 11:15:31 -0800
Subject: [PATCH] Added a performance test
---
src/node/examples/perf_test.js | 104 +++++++++++++++++++++++++++++++++
1 file changed, 104 insertions(+)
create mode 100644 src/node/examples/perf_test.js
diff --git a/src/node/examples/perf_test.js b/src/node/examples/perf_test.js
new file mode 100644
index 0000000000..379b14e000
--- /dev/null
+++ b/src/node/examples/perf_test.js
@@ -0,0 +1,104 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+var grpc = require('..');
+var testProto = grpc.load(__dirname + '/../interop/test.proto').grpc.testing;
+var _ = require('underscore');
+var interop_server = require('../interop/interop_server.js');
+
+function runTest(iterations, callback) {
+ var testServer = interop_server.getServer(0, false);
+ testServer.server.listen();
+ var client = new testProto.TestService('localhost:' + testServer.port);
+
+ function runIterations(finish) {
+ var start = process.hrtime();
+ var intervals = [];
+ var pending = iterations;
+ function next(i) {
+ if (i >= iterations) {
+ testServer.server.shutdown();
+ var totalDiff = process.hrtime(start);
+ finish({
+ total: totalDiff[0] * 1000000 + totalDiff[1] / 1000,
+ intervals: intervals
+ });
+ } else{
+ var deadline = new Date();
+ deadline.setSeconds(deadline.getSeconds() + 3);
+ var startTime = process.hrtime();
+ client.emptyCall({}, function(err, resp) {
+ var timeDiff = process.hrtime(startTime);
+ intervals[i] = timeDiff[0] * 1000000 + timeDiff[1] / 1000;
+ next(i+1);
+ }, {}, deadline);
+ }
+ }
+ next(0);
+ }
+
+ function warmUp(num) {
+ var pending = num;
+ for (var i = 0; i < num; i++) {
+ (function(i) {
+ client.emptyCall({}, function(err, resp) {
+ pending--;
+ if (pending === 0) {
+ runIterations(callback);
+ }
+ });
+ })(i);
+ }
+ }
+ warmUp(100);
+}
+
+if (require.main === module) {
+ var count;
+ if (process.argv.length >= 3) {
+ count = process.argv[2];
+ } else {
+ count = 100;
+ }
+ runTest(count, function(results) {
+ console.log('count:', count);
+ console.log('total time:', results.total, 'us');
+ console.log('min latency:', _.min(results.intervals), 'us');
+ console.log('max latency:', _.max(results.intervals), 'us');
+ console.log('average latency:', _.reduce(results.intervals, function(a, b){
+ return a+b;
+ }) / count, 'us');
+ });
+}
+
+module.exports = runTest;
--
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