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'use strict'; const common = require('../common.js'); const dc = require('diagnostics_channel'); const bench = common.createBenchmark(main, { n: [1e8], subscribers: [0, 1, 10], }); function noop() {} function main({ n, subscribers }) { const channel = dc.channel('test'); for (let i = 0; i < subscribers; i++) { channel.subscribe(noop); } const data = { foo: 'bar' }; bench.start(); for (let i = 0; i < n; i++) { if (channel.hasSubscribers) { channel.publish(data); } } bench.end(n); }