57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
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// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-gc --stress-runs=1
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const kBatchSize = 10;
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const kNumBatches = 10;
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function RunWorkerBatch(count) {
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let script = `onmessage =
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function(msg) {
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if (msg.array) {
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msg.array[0] = 99;
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postMessage({array : msg.array});
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}
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}`;
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// Launch workers.
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let workers = new Array(count);
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for (let i = 0; i < count; i++) {
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workers[i] = new Worker(script, {type : 'string'});
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}
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// Send messages.
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for (let i = 0; i < workers.length; i++) {
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let array = new Int32Array([55, -77]);
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workers[i].postMessage({array : array});
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// terminate half of the workers early.
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if ((i & 1) == 1) workers[i].terminate();
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}
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// Wait for replies.
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for (let i = 0; i < workers.length; i++) {
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let msg = workers[i].getMessage();
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if (msg !== undefined && msg.array) {
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assertInstanceof(msg.array, Int32Array);
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assertEquals(99, msg.array[0]);
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assertEquals(-77, msg.array[1]);
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}
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// terminate all workers.
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workers[i].terminate();
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}
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}
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(function RunTest() {
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print(`running ${kNumBatches} batches...`);
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let time = performance.now();
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for (let i = 0; i < kNumBatches; i++) {
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let before = performance.now();
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RunWorkerBatch(kBatchSize);
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gc();
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let time = performance.now() - before;
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print(`batch ${i+1}, Δ = ${(time).toFixed(3)} ms`);
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}
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})();
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