import * as os from 'os' import { _mb } from '@naturalcycles/js-lib' /* eslint-disable @typescript-eslint/explicit-module-boundary-types */ export function memoryUsage() { const { rss, external, heapUsed, heapTotal } = process.memoryUsage() return { rss: _mb(rss), heapTotal: _mb(heapTotal), heapUsed: _mb(heapUsed), external: _mb(external), } } export function memoryUsageFull() { const { rss, external, heapUsed, heapTotal } = process.memoryUsage() const totalMem = os.totalmem() const freeMem = os.freemem() return { rss: _mb(rss), heapTotal: _mb(heapTotal), heapUsed: _mb(heapUsed), external: _mb(external), totalMem: _mb(totalMem), freeMem: _mb(freeMem), usedMem: _mb(totalMem - freeMem), } } class ProcessUtil { private timer!: NodeJS.Timer startMemoryTimer(intervalMillis = 1000): void { console.log(memoryUsage()) this.timer = setInterval(() => { console.log(memoryUsage()) }, intervalMillis) } stopMemoryTimer(afterMillis = 0): void { setTimeout(() => clearInterval(this.timer), afterMillis) } cpuAvg(): { avg1: string; avg5: string; avg15: string } { const avg = os.loadavg() return { avg1: avg[0]!.toFixed(2), avg5: avg[1]!.toFixed(2), avg15: avg[2]!.toFixed(2), } } cpuInfo(): { count: number; model: string; speed: number } { const c = os.cpus()[0]! return { count: os.cpus().length, model: c.model, speed: c.speed, } } async cpuPercent(ms: number): Promise { const stats1 = this.getCPUInfo() const startIdle = stats1.idle const startTotal = stats1.total return new Promise(resolve => { setTimeout(() => { const stats2 = this.getCPUInfo() const endIdle = stats2.idle const endTotal = stats2.total const idle = endIdle - startIdle const total = endTotal - startTotal const perc = idle / total resolve(Math.round((1 - perc) * 100)) }, ms) }) } private getCPUInfo() { // eslint-disable-next-line unicorn/no-array-reduce return os.cpus().reduce( (r, cpu) => { r['idle'] += cpu.times.idle Object.values(cpu.times).forEach(m => (r['total'] += m)) return r }, { idle: 0, total: 0, }, ) } } export const processSharedUtil = new ProcessUtil()