mirror-jetstream/web-tooling-benchmark/benchmark.js
Camillo Bruni 43fec888d2 Merge latest upstream main changes
Summary:
- Better CLI arguments parsing
- Builtin compression support for large source files

Change-Id: Ia0bf37ae5405adb218a2da2c072a1f9cf0ee9f95
Reviewed-on: https://chromium-review.googlesource.com/c/external/github.com/WebKit/JetStream/+/7021129
Reviewed-by: Marja Hölttä <marja@chromium.org>
2025-10-13 04:18:39 -07:00

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JavaScript

/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
class Benchmark {
files = Object.create(null);
async init() {
let WTBenchmark;
await this.loadAllFiles(JetStream.preload);
this.sourceCode = this.files.BUNDLE;
this.WTBenchmark = self.WTBenchmark;
}
async loadAllFiles(preload) {
const loadPromises = Object.entries(preload).map(
async ([name, url]) => {
if (name.endsWith(".wasm")) {
const buffer = (await JetStream.getBinary(url)).buffer;
if (!(buffer instanceof ArrayBuffer)) {
// The returned array buffer is from a different global when
// prefetching resources and running in the shell. This is fine,
// except for the source map code doing an instanceof
// check that fails for the prototype being in a different realm.
Object.setPrototypeOf(buffer, ArrayBuffer.prototype);
}
this.files[name] = buffer;
} else {
this.files[name] = await JetStream.getString(url);
}
})
await Promise.all(loadPromises);
}
async runIteration() {
await this.WTBenchmark.runTest(this.files);
}
}