30d60cf81cProvide means to inspect information about the separate heap spaces via a callable API. This is helpful to analyze memory issues. Fixes: https://github.com/nodejs/node/issues/2079 PR-URL: https://github.com/nodejs/node/pull/4463 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: James M Snell <jasnell@gmail.com>
36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
'use strict';
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require('../common');
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var assert = require('assert');
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var v8 = require('v8');
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var s = v8.getHeapStatistics();
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var keys = [
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'heap_size_limit',
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'total_available_size',
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'total_heap_size',
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'total_heap_size_executable',
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'total_physical_size',
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'used_heap_size'];
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assert.deepEqual(Object.keys(s).sort(), keys);
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keys.forEach(function(key) {
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assert.equal(typeof s[key], 'number');
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});
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const expectedHeapSpaces = [
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'new_space',
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'old_space',
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'code_space',
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'map_space',
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'large_object_space'
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];
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const heapSpaceStatistics = v8.getHeapSpaceStatistics();
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const actualHeapSpaceNames = heapSpaceStatistics.map((s) => s.space_name);
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assert.deepEqual(actualHeapSpaceNames.sort(), expectedHeapSpaces.sort());
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heapSpaceStatistics.forEach((heapSpace) => {
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assert.strictEqual(typeof heapSpace.space_name, 'string');
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assert.strictEqual(typeof heapSpace.space_size, 'number');
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assert.strictEqual(typeof heapSpace.space_used_size, 'number');
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assert.strictEqual(typeof heapSpace.space_available_size, 'number');
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assert.strictEqual(typeof heapSpace.physical_space_size, 'number');
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});
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