mirror of https://github.com/grpc/grpc-node.git
113 lines
3.6 KiB
JavaScript
113 lines
3.6 KiB
JavaScript
/*
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*
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* Copyright 2016 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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'use strict';
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var _ = require('lodash');
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// TODO(murgatroid99): use multiple grpc implementations
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var grpc = require('grpc');
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var interop_client = require('../interop/interop_client');
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var MetricsServer = require('./metrics_server');
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var running;
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var metrics_server;
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var start_time;
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var query_count;
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function makeCall(client, test_cases) {
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if (!running) {
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return;
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}
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var test_case = test_cases[_.random(test_cases.length - 1)];
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interop_client.test_cases[test_case].run(client, function() {
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query_count += 1;
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makeCall(client, test_cases);
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});
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}
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function makeCalls(client, test_cases, parallel_calls_per_channel) {
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_.times(parallel_calls_per_channel, function() {
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makeCall(client, test_cases);
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});
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}
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function getQps() {
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var diff = process.hrtime(start_time);
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var seconds = diff[0] + diff[1] / 1e9;
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return {long_value: query_count / seconds};
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}
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function start(server_addresses, test_cases, channels_per_server,
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parallel_calls_per_channel, metrics_port) {
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running = true;
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/* Assuming that we are not calling unimplemented_method. The client class
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* used by empty_unary is (currently) the client class used by every interop
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* test except unimplemented_method */
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var Client = interop_client.test_cases.empty_unary.Client;
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/* Make channels_per_server clients connecting to each server address */
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var channels = _.flatten(_.times(
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channels_per_server, _.partial(_.map, server_addresses, function(address) {
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return new Client(address, grpc.credentials.createInsecure());
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})));
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metrics_server = new MetricsServer(metrics_port);
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metrics_server.registerGauge('qps', getQps);
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start_time = process.hrtime();
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query_count = 0;
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_.each(channels, _.partial(makeCalls, _, test_cases,
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parallel_calls_per_channel));
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metrics_server.start();
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}
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function stop() {
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running = false;
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metrics_server.shutdown();
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console.log('QPS: ' + getQps().long_value);
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}
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function main() {
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var parseArgs = require('minimist');
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var argv = parseArgs(process.argv, {
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string: ['server_addresses', 'test_cases', 'metrics_port'],
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default: {'server_addresses': 'localhost:8080',
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'test_duration_secs': -1,
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'num_channels_per_server': 1,
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'num_stubs_per_channel': 1,
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'metrics_port': '8081'}
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});
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var server_addresses = argv.server_addresses.split(',');
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/* Generate an array of test cases, where the number of instances of each name
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* corresponds to the number given in the argument.
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* e.g. 'empty_unary:1,large_unary:2' =>
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* ['empty_unary', 'large_unary', 'large_unary'] */
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var test_cases = _.flatten(_.map(argv.test_cases.split(','), function(value) {
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var split = value.split(':');
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return _.times(split[1], _.constant(split[0]));
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}));
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start(server_addresses, test_cases, argv.num_channels_per_server,
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argv.num_stubs_per_channel, argv.metrics_port);
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if (argv.test_duration_secs > -1) {
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setTimeout(stop, argv.test_duration_secs * 1000);
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}
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}
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main();
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