How to track system load average using java

Question

How to track system load average using java.The result should be same the load average is returning form the 'uptime' command in Linux.

Sample uptime command result is,

root@jamsheer:~# uptime

16:01:06 up  6:58,  2 users,  load average: 1.24, 1.25, 1.33

I need to get same load average through programmatically and should be executable at all platforms, Any suggestion, please.

Thanks in advance.

You can execute the uptime command from Java Runtime and parse the information from the result. — Rahul, Feb 08 '18 at 10:43
ok, Is there any solution available to execute in cross platforms? — Jamsheer, Feb 08 '18 at 10:45
Check my answer here, it has a sample code snippet to execute the command - https://stackoverflow.com/questions/48325178/in-java-8-how-do-i-get-my-hostname-without-hard-coding-it-in-my-environment/48462667#48462667 — Rahul, Feb 08 '18 at 10:53
You mean you also want to execute the uptime command in windows or macos ? — Erwin Smout, Feb 08 '18 at 11:32

score 2 · Accepted Answer · edited Jul 30 '20 at 19:21

2

For platform independent result, check JMX and OperatingSystemMXBean:

OperatingSystemMXBean mxBean = ManagementFactory.getOperatingSystemMXBean();
double loadAverage = mxBean.getSystemLoadAverage();

Please mind that if your platform is unable to report it, the value returned will be negative, which is the result in my case on Win 7 box.

edited Jul 30 '20 at 19:21

yglodt

answered Feb 08 '18 at 11:35

diginoise

1 Answers1