e0b18b9022
This is a reland of a0728e869b
Original change's description:
> [d8] Remove maximum workers limitation
>
> This CL refactors the lifetime management of the v8::Worker C++ object
> and in the process lifts the 100 maximum worker limitation. To do this,
> it uses a Managed<v8::Worker> heap object and attaches the managed to
> the API worker object.
>
> R=mstarzinger@chromium.org
> BUG=v8:9524
>
> Change-Id: I279b7aeb6645a87f9108ee6f572105739721cef4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1715453
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62932}
Bug: v8:9524
Change-Id: I7d903fb12ddb00909a9429455f46c55db2fd02de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1722562
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62974}
56 lines
1.5 KiB
JavaScript
56 lines
1.5 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: --stress-runs=1
|
|
|
|
const kBatchSize = 10;
|
|
const kNumBatches = 10;
|
|
|
|
function RunWorkerBatch(count) {
|
|
let script = `onmessage =
|
|
function(msg) {
|
|
if (msg.array) {
|
|
msg.array[0] = 99;
|
|
postMessage({array : msg.array});
|
|
}
|
|
}`;
|
|
|
|
// Launch workers.
|
|
let workers = new Array(count);
|
|
for (let i = 0; i < count; i++) {
|
|
workers[i] = new Worker(script, {type : 'string'});
|
|
}
|
|
|
|
// Send messages.
|
|
for (let i = 0; i < workers.length; i++) {
|
|
let array = new Int32Array([55, -77]);
|
|
workers[i].postMessage({array : array});
|
|
// terminate half of the workers early.
|
|
if ((i & 1) == 1) workers[i].terminate();
|
|
}
|
|
|
|
// Wait for replies.
|
|
for (let i = 0; i < workers.length; i++) {
|
|
let msg = workers[i].getMessage();
|
|
if (msg !== undefined && msg.array) {
|
|
assertInstanceof(msg.array, Int32Array);
|
|
assertEquals(99, msg.array[0]);
|
|
assertEquals(-77, msg.array[1]);
|
|
}
|
|
// terminate all workers.
|
|
workers[i].terminate();
|
|
}
|
|
}
|
|
|
|
(function RunTest() {
|
|
print(`running ${kNumBatches} batches...`);
|
|
let time = performance.now();
|
|
for (let i = 0; i < kNumBatches; i++) {
|
|
let before = performance.now();
|
|
RunWorkerBatch(kBatchSize);
|
|
let time = performance.now() - before;
|
|
print(`batch ${i+1}, Δ = ${(time).toFixed(3)} ms`);
|
|
}
|
|
})();
|