mirror of https://github.com/grpc/grpc-node.git
119 lines
3.9 KiB
JavaScript
119 lines
3.9 KiB
JavaScript
/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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'use strict';
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var grpc = require('..');
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var testProto = grpc.load(__dirname + '/../interop/test.proto').grpc.testing;
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var _ = require('underscore');
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var interop_server = require('../interop/interop_server.js');
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function runTest(iterations, callback) {
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var testServer = interop_server.getServer(0, false);
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testServer.server.listen();
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var client = new testProto.TestService('localhost:' + testServer.port);
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function runIterations(finish) {
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var start = process.hrtime();
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var intervals = [];
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function next(i) {
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if (i >= iterations) {
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testServer.server.shutdown();
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var totalDiff = process.hrtime(start);
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finish({
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total: totalDiff[0] * 1000000 + totalDiff[1] / 1000,
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intervals: intervals
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});
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} else{
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var deadline = new Date();
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deadline.setSeconds(deadline.getSeconds() + 3);
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var startTime = process.hrtime();
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client.emptyCall({}, function(err, resp) {
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var timeDiff = process.hrtime(startTime);
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intervals[i] = timeDiff[0] * 1000000 + timeDiff[1] / 1000;
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next(i+1);
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}, {}, deadline);
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}
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}
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next(0);
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}
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function warmUp(num) {
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var pending = num;
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function startCall() {
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client.emptyCall({}, function(err, resp) {
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pending--;
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if (pending === 0) {
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runIterations(callback);
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}
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});
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}
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for (var i = 0; i < num; i++) {
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startCall();
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}
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}
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warmUp(100);
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}
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function percentile(arr, pct) {
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if (pct > 99) {
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pct = 99;
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}
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if (pct < 0) {
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pct = 0;
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}
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var index = Math.floor(arr.length * pct / 100);
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return arr[index];
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}
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if (require.main === module) {
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var count;
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if (process.argv.length >= 3) {
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count = process.argv[2];
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} else {
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count = 100;
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}
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runTest(count, function(results) {
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var sorted_intervals = _.sortBy(results.intervals, _.identity);
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console.log('count:', count);
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console.log('total time:', results.total, 'us');
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console.log('median:', percentile(sorted_intervals, 50), 'us');
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console.log('90th percentile:', percentile(sorted_intervals, 90), 'us');
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console.log('95th percentile:', percentile(sorted_intervals, 95), 'us');
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console.log('99th percentile:', percentile(sorted_intervals, 99), 'us');
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console.log('QPS:', (count / results.total) * 1000000);
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});
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}
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module.exports = runTest;
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