feat: add process cpu usage to admin

public/language/en-GB/admin/development/info.json

@@ -7,7 +7,8 @@
 	"online": "online",
 	"git": "git",
 	"memory": "memory",
-	"load": "load",
+	"load": "system load",
+	"cpu-usage": "cpu usage",
 	"uptime": "uptime",
 
 	"registered": "Registered",

src/controllers/admin/info.js

@@ -65,6 +65,7 @@ function getNodeInfo(callback) {
 			version: process.version,
 			memoryUsage: process.memoryUsage(),
 			uptime: process.uptime(),
+			cpuUsage: process.cpuUsage(),
 		},
 		os: {
 			hostname: os.hostname(),
@@ -75,7 +76,8 @@ function getNodeInfo(callback) {
 			load: os.loadavg().map(function (load) { return load.toFixed(2); }).join(', '),
 		},
 	};
-
+	data.process.cpuUsage.user /= 1000;
+	data.process.cpuUsage.system /= 1000;
 	data.process.memoryUsage.humanReadable = (data.process.memoryUsage.rss / (1024 * 1024)).toFixed(2);
 
 	async.waterfall([

src/views/admin/development/info.tpl

@@ -15,6 +15,7 @@
 						<td>[[admin/development/info:nodejs]]</td>
 						<td>[[admin/development/info:online]]</td>
 						<td>[[admin/development/info:git]]</td>
+						<td>[[admin/development/info:cpu-usage]]</td>
 						<td>[[admin/development/info:memory]]</td>
 						<td>[[admin/development/info:load]]</td>
 						<td>[[admin/development/info:uptime]]</td>
@@ -32,6 +33,7 @@
 						<span title="[[admin/development/info:sockets]]">{info.stats.socketCount}</span>
 					</td>
 					<td>{info.git.branch}@<a href="https://github.com/NodeBB/NodeBB/commit/{info.git.hash}" target="_blank">{info.git.hash}</a></td>
+					<td>{info.process.cpuUsage.user} / {info.process.cpuUsage.system}</td>
 					<td>{info.process.memoryUsage.humanReadable} mb</td>
 					<td>{info.os.load}</td>
 					<td>{info.process.uptime}</td>