Detecting memory leaks

[Jari Korva]

Thanks for the hint! If I understand correctly, it is C, not GC:

--> Marking for collection 3 after 538172 allocd bytes + 177516 wasted
bytes
Collection 2 finished ---> heapsize = 1011712 bytes
World-stopped marking took 30 msecs
Complete collection took 40 msecs

...

--> Marking for collection 1011 after 529980 allocd bytes + 144748 wasted
bytes
Collection 1010 finished ---> heapsize = 1011712 bytes
World-stopped marking took 30 msecs
Complete collection took 40 msecs

For some reason, I didn't get any additional output from
GC_DUMP_REGULARLY.

Are there any tools that can help me from there? I know that in
general there are many tools, but are they applicable to gcj and ARM (it
seems that I'm too lazy to try them myself ;) ?

On Wed, 22 Sep 2004, Hans Boehm wrote:
> A good first step is probably to determine whether the GC heap or the C
> heap is growing.  Setting the GC_PRINT_STATS and/or GC_DUMP_REGULARLY
> environment variables should tell you that.  (The latter produces lots of
> output on large GC heaps.)
>
> Hans
>
> On Wed, 22 Sep 2004, Jari Korva wrote:
>
> > Hi,
> >
> > are there any easy to use tools for finding gcj memory leaks, especially
> > on ARM/XScale? For example the following code seems to leak on
> > armv5l (gcj 3.4.0) and armv5b (gcj 3.4.2), but not on x86 (gcj 3.4.0):
> >
> > import java.net.*;
> >
> > public class MemLeakTest
> > {
> >     public static void main(String args[])
> >     {
> >         for(;;)
> >         {
> >             try {
> >
> >             URL url = new URL("http://princess.willab.fi:8111/");
> >             URLConnection conn = url.openConnection();
> >             System.out.println(conn.getContentType());
> >             conn.getInputStream().close();
> >
> >             } catch(Exception e) {
> >                 e.printStackTrace();
> >             }
> >         }
> >
> >     }
> > }
> >
> > Cheers,
> >   Jari
> >
> > --
> >  - Jari Korva -
> >
>

 - Jari Korva -
  - jari.korva@iki.fi -
  - http://www.iki.fi/jpkorva/ -
  - +358-40-756 4812 -