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'use strict'; const common = require('../common'); const { Console } = require('console'); const { Writable } = require('stream'); const async_hooks = require('async_hooks'); // Make sure that repeated calls to console.log(), and by extension // stream.write() for the underlying stream, allocate exactly 1 tick object. // At the time of writing, that is enough to ensure a flat memory profile // from repeated console.log() calls, rather than having callbacks pile up // over time, assuming that data can be written synchronously. // Refs: https://github.com/nodejs/node/issues/18013 // Refs: https://github.com/nodejs/node/issues/18367 const checkTickCreated = common.mustCall(); async_hooks.createHook({ init(id, type, triggerId, resoure) { if (type === 'TickObject') checkTickCreated(); } }).enable(); const console = new Console(new Writable({ write: common.mustCall((chunk, encoding, cb) => { cb(); }, 100) })); for (let i = 0; i < 100; i++) console.log(i);