CODEWITHSUNDEEP
javamemoryscalajvmjmx
Ivan
Ivan

Reputation: 64227

In Scala or Java, how to get how much RAM does application currently occupy?

NetBeans IDE has a taskbar indicaror, showing how much RAM is currently allocated and used by the running instance. How can I get this data in my own application written in Scala? If there's no special function for this in Scala, I could use Java one.

Upvotes: 7

Views: 3169

Answers (2)

miku
miku

Reputation: 188194

private val runtime = Runtime.getRuntime()
import runtime.{ totalMemory, freeMemory, maxMemory }

 System.out.println("New session, \ 
    total memory = %s, max memory = %s, free memory = %s".format(
        totalMemory, maxMemory, freeMemory))

Just copied from http://harrah.github.com/browse/samples/compiler/scala/tools/nsc/CompileServer.scala.html

Upvotes: 11

Michael Barker
Michael Barker

Reputation: 14398

You can either use the totalMemory and maxMemory methods from the java.lang.Runtime class, or make use of the MemoryMXBean.

Upvotes: 3

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