How to check the system memory load

Question

I need to programmatically check the system load. I understand that there is no general way, and we need as a check on a separate Windows and Ubuntu

In case someone points out `Runtime.maxMemory()` and `Runtime.totalMemory()`, here's the [obligatory link](http://stackoverflow.com/questions/1463868/java-runtime-maxmemory-incorrect) on why they can be incorrect. — Vineet Reynolds, Jul 07 '11 at 06:19
@Vineet - and they only report Heap memory usage from the JVM's perspective, not total memory usage from the system perspective; i.e. they don't report non-heap usage, physical page residency, paging rates, etc. — Stephen C, Jul 07 '11 at 06:25

score 0 · Answer 1 · answered Jul 07 '11 at 06:23

0

Given that your aim is to track down a memory leak (apparently), it would be better to use existing tools to monitor memory utilization; e.g.

Java profiling tools included in the JDK.
System specific tools such as "top", "vmstat", "iostat" and so on, and their Windows equivalents.

Trying to do this from Java is only going to confuse the issue.

answered Jul 07 '11 at 06:23

Stephen C

If you confuse the issue, maybe it will go away? – Adriaan Koster Jul 07 '11 at 07:41
@Adriaan Koster - Nice one :-) – Stephen C Jul 07 '11 at 09:19

1 Answers1