Re: object byte size
From: Jesper Matthiesen (jmatthiesen[_fjen_)
Date: 11/28/03
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Date: Fri, 28 Nov 2003 13:43:01 +0100
> Hi everyone.
> I'm currently implementing a Cache system.
> Limiting its capacity with the number of object makes no sense, since
> objects can have any size they want.
>
> So I'd like to limit its capacity in term of number of bytes allready
> cached.
OK - I'm not quite sure if this is is something you can use but have a look
at:
public void showMemoryInfo()
{
System.setProperty("java.compiler", "javac");
Runtime runtime = Runtime.getRuntime();
long totalMemory = runtime.totalMemory()/1024;
long freeMemory = runtime.freeMemory()/1024;
System.out.println("Total memory: " + totalMemory + " kilobytes.");
Runtime.getRuntime().gc();
System.out.println("Free memory: " + freeMemory + " kilobytes. Also: ");
System.out.println(Math.round(
(((double)freeMemory)/((double)totalMemory)) * 100.0) + "%)");
}
Regards Jesper
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