Date: Thu, 21 Feb 2008 21:42:07 -0800 From: Mika Nystrom <mika@async.caltech.edu> To: Nick Johnson <freebsd@spatula.net> Cc: freebsd-java@freebsd.org Subject: Re: Memory leak in 1.5.0 JVM Message-ID: <200802220542.m1M5g7Qq085021@camembert.async.caltech.edu> In-Reply-To: Your message of "Thu, 21 Feb 2008 19:05:02 PST." <20080221190430.U2617@turing>
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Nick Johnson writes:
>What happens if you add a thread.join()?
>
> Nick
What do you know.. the leak goes away. Also the program uses 1/3
as much memory to start with (RES: 12M vs. 40M).
Mika
>
>On Thu, 21 Feb 2008, Mika Nystrom wrote:
>
>> Hello there freebsd-java,
>>
>> I am running a binary downloaded 1.5.0 JVM on a FreeBSD 5.5 system:
>>
>> (167)rover:~/levinc/memleak>java -version
>> java version "1.5.0"
>> Java(TM) 2 Runtime Environment, Standard Edition (build diablo-1.5.0-b01)
>> Java HotSpot(TM) Client VM (build diablo-1.5.0_07-b01, mixed mode)
>> (168)rover:~/levinc/memleak>uname -a
>> FreeBSD rover 5.5-RELEASE FreeBSD 5.5-RELEASE #4: Sat Nov 17 12:13:24 PST 2007 mika@rover:/usr/src/sys/i386/compile/ROVER i386
>>
>> I have found the following program to leak memory on FreeBSD, but not on Windows with same Java 1.6.0, nor on Debian with gij 1.4.2:
>>
>> class Leakq {
>>
>> private static class MyThread extends Thread {
>> public void run()
>> {
>>
>> }
>> }
>>
>> public static void main (String[] args)
>> {
>> for(;;) {
>> (new MyThread()).start();
>> }
>> }
>> }
>>
>> Best regards,
>> Mika Nystrom
>> mika@alum.mit.edu
>> _______________________________________________
>> freebsd-java@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-java
>> To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org"
>>
>
>--
>"Courage isn't just a matter of not being frightened, you know. It's being
> afraid and doing what you have to do anyway."
> Doctor Who - Planet of the Daleks
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