80 lines
1.6 KiB
TypeScript
80 lines
1.6 KiB
TypeScript
import * as si from 'systeminformation';
|
|
import Xev from 'xev';
|
|
import * as osUtils from 'os-utils';
|
|
|
|
const ev = new Xev();
|
|
|
|
const interval = 2000;
|
|
|
|
const roundCpu = (num: number) => Math.round(num * 1000) / 1000;
|
|
const round = (num: number) => Math.round(num * 10) / 10;
|
|
|
|
/**
|
|
* Report server stats regularly
|
|
*/
|
|
export default function() {
|
|
const log = [] as any[];
|
|
|
|
ev.on('requestServerStatsLog', x => {
|
|
ev.emit(`serverStatsLog:${x.id}`, log.slice(0, x.length || 50));
|
|
});
|
|
|
|
async function tick() {
|
|
const cpu = await cpuUsage();
|
|
const memStats = await mem();
|
|
const netStats = await net();
|
|
const fsStats = await fs();
|
|
|
|
const stats = {
|
|
cpu: roundCpu(cpu),
|
|
mem: {
|
|
used: round(memStats.used - memStats.buffers - memStats.cached),
|
|
active: round(memStats.active),
|
|
},
|
|
net: {
|
|
rx: round(Math.max(0, netStats.rx_sec)),
|
|
tx: round(Math.max(0, netStats.tx_sec)),
|
|
},
|
|
fs: {
|
|
r: round(Math.max(0, fsStats.rIO_sec)),
|
|
w: round(Math.max(0, fsStats.wIO_sec)),
|
|
}
|
|
};
|
|
ev.emit('serverStats', stats);
|
|
log.unshift(stats);
|
|
if (log.length > 200) log.pop();
|
|
}
|
|
|
|
tick();
|
|
|
|
setInterval(tick, interval);
|
|
}
|
|
|
|
// CPU STAT
|
|
function cpuUsage() {
|
|
return new Promise((res, rej) => {
|
|
osUtils.cpuUsage((cpuUsage: number) => {
|
|
res(cpuUsage);
|
|
});
|
|
});
|
|
}
|
|
|
|
// MEMORY STAT
|
|
async function mem() {
|
|
const data = await si.mem();
|
|
return data;
|
|
}
|
|
|
|
// NETWORK STAT
|
|
async function net() {
|
|
const iface = await si.networkInterfaceDefault();
|
|
const data = await si.networkStats(iface);
|
|
return data[0];
|
|
}
|
|
|
|
// FS STAT
|
|
async function fs() {
|
|
const data = await si.disksIO().catch(() => ({ rIO_sec: 0, wIO_sec: 0 }));
|
|
return data;
|
|
}
|