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The heap size limit should be the sum of old generation and young generation size limits, and does not solely depend on the limit of the old generation. PR-URL: https://github.com/nodejs/node/pull/42702 Refs: https://github.com/nodejs/node/issues/35711 Reviewed-By: Chengzhong Wu <legendecas@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: James M Snell <jasnell@gmail.com>
62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const v8 = require('v8');
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const { Worker, resourceLimits, isMainThread } = require('worker_threads');
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if (isMainThread) {
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assert.deepStrictEqual(resourceLimits, {});
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}
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const testResourceLimits = {
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maxOldGenerationSizeMb: 16,
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maxYoungGenerationSizeMb: 4,
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codeRangeSizeMb: 16,
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stackSizeMb: 1,
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};
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// Do not use isMainThread so that this test itself can be run inside a Worker.
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if (!process.env.HAS_STARTED_WORKER) {
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process.env.HAS_STARTED_WORKER = 1;
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const w = new Worker(__filename, { resourceLimits: testResourceLimits });
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assert.deepStrictEqual(w.resourceLimits, testResourceLimits);
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w.on('exit', common.mustCall((code) => {
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assert.strictEqual(code, 1);
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assert.deepStrictEqual(w.resourceLimits, {});
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}));
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w.on('error', common.expectsError({
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code: 'ERR_WORKER_OUT_OF_MEMORY',
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message: 'Worker terminated due to reaching memory limit: ' +
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'JS heap out of memory'
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}));
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return;
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}
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assert.deepStrictEqual(resourceLimits, testResourceLimits);
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const array = [];
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while (true) {
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const usedMB = v8.getHeapStatistics().used_heap_size / 1024 / 1024;
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const maxReservedSize = resourceLimits.maxOldGenerationSizeMb +
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resourceLimits.maxYoungGenerationSizeMb;
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assert(usedMB < maxReservedSize);
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let seenSpaces = 0;
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for (const { space_name, space_size } of v8.getHeapSpaceStatistics()) {
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if (space_name === 'new_space') {
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seenSpaces++;
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assert(
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space_size / 1024 / 1024 < resourceLimits.maxYoungGenerationSizeMb * 2);
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} else if (space_name === 'old_space') {
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seenSpaces++;
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assert(space_size / 1024 / 1024 < resourceLimits.maxOldGenerationSizeMb);
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} else if (space_name === 'code_space') {
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seenSpaces++;
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assert(space_size / 1024 / 1024 < resourceLimits.codeRangeSizeMb);
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}
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}
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assert.strictEqual(seenSpaces, 3);
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for (let i = 0; i < 100; i++)
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array.push([array]);
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}
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