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BenchmarkRunner.js
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BenchmarkRunner.js
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/*
* Copyright (c) 2008-2020, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
const { Client } = require('../.');
class BenchmarkRunner {
constructor(config) {
this._nextOp = config.nextOp;
this.totalOps = config.totalOps;
this.concurrency = config.concurrency;
this.ops = 0;
}
// increments ops counter, starts a new op and returns its promise
nextOp() {
this.ops++;
return this._nextOp();
}
// chains next op once one of ops finishes to keep constant concurrency of ops
chainNext(op) {
return op.then(() => {
if (this.ops < this.totalOps) {
return this.chainNext(this.nextOp());
}
});
}
run() {
// initial batch of ops (no-op promises)
const batch = new Array(this.concurrency).fill(Promise.resolve());
const start = process.hrtime();
return Promise.all(batch.map(this.chainNext.bind(this)))
.then(() => {
const time = process.hrtime(start);
const tookSec = time[0] + time[1] * 1e-9;
return {
tookSec,
opsCount: this.ops,
opsPerSec: this.ops / tookSec
};
});
}
}
async function runBenchmark(config) {
const prepareOp = config.prepareOp;
const nextOp = config.nextOp;
const totalOps = config.totalOps;
const concurrency = config.concurrency;
const client = await Client.newHazelcastClient({
properties: {
'hazelcast.logging.level': 'WARN'
}
});
const map = await client.getMap('default');
if (prepareOp) {
await prepareOp(map);
}
const warmup = new BenchmarkRunner({
nextOp: () => nextOp(map),
totalOps: totalOps * 0.1,
concurrency
});
console.log(`Starting warm-up with ${warmup.totalOps} operations`);
await warmup.run();
console.log('Warm-up finished');
const benchmark = new BenchmarkRunner({
nextOp: () => nextOp(map),
totalOps,
concurrency
});
const result = await benchmark.run();
console.log(`Took ${result.tookSec} seconds for ${result.opsCount} operations`);
console.log(`Ops/s: ${result.opsPerSec}`);
console.log('Benchmark finished');
await map.destroy();
await client.shutdown();
}
module.exports = runBenchmark;