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-rw-r--r--src/node/performance/perf_test.js119
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diff --git a/src/node/performance/perf_test.js b/src/node/performance/perf_test.js
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--- a/src/node/performance/perf_test.js
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-/*
- *
- * Copyright 2015, 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.
- *
- */
-
-'use strict';
-
-var grpc = require('..');
-var testProto = grpc.load(__dirname + '/../interop/test.proto').grpc.testing;
-var _ = require('lodash');
-var interop_server = require('../interop/interop_server.js');
-
-function runTest(iterations, callback) {
- var testServer = interop_server.getServer(0, false);
- testServer.server.start();
- var client = new testProto.TestService('localhost:' + testServer.port,
- grpc.credentials.createInsecure());
-
- function runIterations(finish) {
- var start = process.hrtime();
- var intervals = [];
- 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: deadline});
- }
- }
- next(0);
- }
-
- function warmUp(num) {
- var pending = num;
- function startCall() {
- client.emptyCall({}, function(err, resp) {
- pending--;
- if (pending === 0) {
- runIterations(callback);
- }
- });
- }
- for (var i = 0; i < num; i++) {
- startCall();
- }
- }
- warmUp(100);
-}
-
-function percentile(arr, pct) {
- if (pct > 99) {
- pct = 99;
- }
- if (pct < 0) {
- pct = 0;
- }
- var index = Math.floor(arr.length * pct / 100);
- return arr[index];
-}
-
-if (require.main === module) {
- var count;
- if (process.argv.length >= 3) {
- count = process.argv[2];
- } else {
- count = 100;
- }
- runTest(count, function(results) {
- var sorted_intervals = _.sortBy(results.intervals, _.identity);
- console.log('count:', count);
- console.log('total time:', results.total, 'us');
- console.log('median:', percentile(sorted_intervals, 50), 'us');
- console.log('90th percentile:', percentile(sorted_intervals, 90), 'us');
- console.log('95th percentile:', percentile(sorted_intervals, 95), 'us');
- console.log('99th percentile:', percentile(sorted_intervals, 99), 'us');
- console.log('QPS:', (count / results.total) * 1000000);
- });
-}
-
-module.exports = runTest;