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Adding speed tests

v4_proto
Nicolas Dextraze 5 years ago
parent
commit
18e35c56f9
  1. 108
      samples/speed-tests.js

108
samples/speed-tests.js

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//NOTE: this script require node.js v8+ to run (native async/await)
var uuid = require('uuid');
var client = require('../src/client');
var conn = client.createConnection({}, 'tcp://localhost:1113');
conn.on('connected', onConnected);
var batchSize = parseInt(process.argv[2], 10) || 500;
const MB = 1024*1024;
const adminCreds = new client.UserCredentials("admin", "changeit");
const nbEvents = 50000;
const events = [];
const streams = [];
const writeOneStream = 'testWrite-' + uuid.v4();
for(var i = 0; i < nbEvents; i++) {
streams.push('testWrite-' + uuid.v4());
events.push(client.createJsonEventData(uuid.v4(), {a:i, b:i+1, c:i+2}, null, 'myEvent'))
}
conn.connect();
function rssMB() {
return (process.memoryUsage().rss / MB).toFixed(2);
}
function reportResult(action, nbEvents, elapsedMs) {
console.log(action, nbEvents, 'events took', elapsedMs, 'ms, avg', (nbEvents/(elapsedMs/1000)).toFixed(2), '/s');
console.log('Memory usage:', rssMB(), 'MB\n');
}
async function testWriteOneStreamAnyVersion(batchSize) {
console.log(`Test Write One Stream Any Version (batchSize = ${batchSize})...`);
const start = Date.now();
const promises = [];
for(let i = 0; i < nbEvents; i += batchSize) {
promises.push(conn.appendToStream(writeOneStream, client.expectedVersion.any, events.slice(i, i + batchSize)))
}
await Promise.all(promises);
var diff = Date.now() - start;
reportResult("Writing", nbEvents, diff)
}
async function testWriteOneStreamWithVersion(batchSize) {
console.log(`Test Write One Stream With Version (batchSize = ${batchSize})...`);
const writeStream = 'testWrite-' + uuid.v4();
const start = Date.now();
const promises = [];
for(let i = 0; i < nbEvents; i += batchSize) {
promises.push(conn.appendToStream(writeStream, i-1, events.slice(i, i + batchSize)))
}
await Promise.all(promises);
var diff = Date.now() - start;
reportResult("Writing", nbEvents, diff)
}
async function testWriteMultipleStream() {
console.log('Test Write Multiple Streams...');
var start = Date.now();
var promises = [];
for(var i = 0; i < nbEvents; i++) {
promises.push(conn.appendToStream(streams[i], client.expectedVersion.emptyStream, events[i]))
}
await Promise.all(promises);
const diff = Date.now() - start;
reportResult("Writing", nbEvents, diff)
}
async function testRead(batchSize) {
console.log(`Test Read One Stream (batchSize = ${batchSize})...`);
const start = Date.now();
const promises = [];
for(let i = 0; i < nbEvents; i += batchSize) {
promises.push(conn.readStreamEventsForward(writeOneStream, i, batchSize, false));
}
const results = await Promise.all(promises);
const diff = Date.now() - start;
const readEvents = results.reduce((x,y) => x + y.events.length, 0);
reportResult("Reading", readEvents, diff)
}
async function testReadAll(batchSize) {
console.log(`Test Read from $all (batchSize = ${batchSize})...`);
const start = Date.now();
let pos = client.positions.start;
let eventsCount = 0;
for(;;) {
var result = await conn.readAllEventsForward(pos, batchSize, false, adminCreds);
pos = result.nextPosition;
eventsCount += result.events.length;
if (result.isEndOfStream) break;
}
const diff = Date.now() - start;
reportResult("Reading", eventsCount, diff)
}
async function onConnected() {
try {
await testWriteOneStreamAnyVersion(1);
await testWriteOneStreamAnyVersion(batchSize);
await testWriteOneStreamWithVersion(1);
await testWriteOneStreamWithVersion(batchSize);
await testWriteMultipleStream();
await testRead(1);
await testRead(batchSize);
await testReadAll(batchSize);
conn.close();
} catch (e) {
console.log('ERROR', e);
}
}
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