v8/test/mjsunit/measure-memory-multiple-realms.js
Camillo Bruni a345a442d3 [d8][mjsunit][tools] Improve d8 file API
- Add d8.file.read() and d8.file.execute() helpers
- Change tools and tests to use new d8.file helper
- Unify error throwing in v8::Shell::ReadFile

Change-Id: I5ef4cb27f217508a367106f01e872a4059d5e399
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2928505
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74883}
2021-06-01 13:37:57 +00:00

43 lines
1.3 KiB
JavaScript

// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-gc
d8.file.execute('test/mjsunit/mjsunit.js');
function assertLessThanOrEqual(a, b) {
assertTrue(a <= b, `Expected ${a} <= ${b}`);
}
function createRealmAndAllocate(bytes) {
let realm = Realm.createAllowCrossRealmAccess();
Realm.eval(realm, `
this.numbers = [.1];
for (let i = 0; i < ${bytes} / 8; ++i) {
this.numbers.push(0.1);
}
`);
}
if (this.performance && performance.measureMemory) {
let number_of_realms = 3;
let realms = [];
let bytes_to_allocate = 1024 * 1024;
for (let i = 0; i < number_of_realms; i++) {
realms.push(createRealmAndAllocate(bytes_to_allocate));
}
assertPromiseResult((async () => {
let result = await performance.measureMemory({detailed: true});
print(JSON.stringify(result));
assertEquals(number_of_realms, result.other.length);
for (let other of result.other) {
// TODO(ulan): compare against bytes_to_allocate once
// we have more accurate native context inference.
assertLessThanOrEqual(0, other.jsMemoryEstimate);
}
})());
// Force a GC to complete memory measurement.
gc();
}