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denoland-deno/cli/tests/workers_startup_bench.ts
Bartek Iwańczuk 7966bf14c0
refactor: split worker and worker host logic (#3722)
* split ops/worker.rs into ops/worker_host.rs and ops/web_worker.rs

* refactor js/workers.ts and factor out js/worker_main.ts - entry point for WebWorker runtime

* BREAKING CHANGE: remove support for blob: URL in Worker

* BREAKING CHANGE: remove Deno namespace support and noDenoNamespace option in Worker constructor

* introduce WebWorker struct which is a stripped down version of cli::Worker
2020-01-21 09:49:47 +01:00

30 lines
891 B
TypeScript

// Benchmark measures time it takes to start and stop a number of workers.
const workerCount = 50;
async function bench(): Promise<void> {
const workers: Worker[] = [];
for (let i = 1; i <= workerCount; ++i) {
const worker = new Worker("./subdir/bench_worker.ts", { type: "module" });
const promise = new Promise((resolve): void => {
worker.onmessage = (e): void => {
if (e.data.cmdId === 0) resolve();
};
});
worker.postMessage({ cmdId: 0, action: 2 });
await promise;
workers.push(worker);
}
console.log("Done creating workers closing workers!");
for (const worker of workers) {
const promise = new Promise((resolve): void => {
worker.onmessage = (e): void => {
if (e.data.cmdId === 3) resolve();
};
});
worker.postMessage({ action: 3 });
await promise;
}
console.log("Finished!");
}
bench();