[news.eclipse.tools.hyades] Re: Number of Collected items are 0

["Lars" <lars@xxxxxxxxxxxxxx>]

I will wait for 3.2 then.

/Lars

"Curtis d'Entremont" <curtispd@xxxxxxxxxx> wrote in message
news:cq81l3$f8p$1@xxxxxxxxxxxxxxxxxx
>
> Actually, that would be very helpful. It's possible this was already fixed
> in Hyades or the Sun JVM, depending on where the problem is. I would
> recommend moving up to Hyades 3.2 - the release hasn't been posted to
> eclipse.org yet, but it should be soon.
>
> If this doesn't fix the problem, you can report this directly as a bug on
> the eclipse.org bugzilla system.
>
> Also, I think you're right about the fact that this isn't actually a
> command, bug more of a suggestion to the JVM. Here's what the Javadocs say
> about the System.gc() method:
>
> "Calling this method suggests that the Java virtual machine expend effort
> toward recycling unused objects in order to make the memory they currently
> occupy available for quick reuse."
>
> Thanks,
> Curt
>
> LO wrote:
>
> > Hi,
>
> > Hyades 3.0.0
>
> > I'm running the RAC server on Solaris 8
> > Eclipse IDE is running on Windows 2000
> > Both are using Sun JDK 1.4.2_03
>
> > Perhaps I should upgrade to a newer Hyades (Both Eclipse plug-in and RAC
> > server) before you start performing some more investigations?
> > (or switch to the newer 1.4.2_06 JVM)
>
> > I'm note sure what to expect when I press the run GC button (long time
since
> > I looked into the JVMPI specs) but will the JVM actaully perform
> > the GC or will it simply take it to consideration.
>
>
> > BR
>
> > Lars
>
>
>
>
>
> > "Curtis d'Entremont" <curtispd@xxxxxxxxxx> wrote in message
> > news:cq57i3$jj8$1@xxxxxxxxxxxxxxxxxx
> >>
> >> Hi Lars,
> >>
> >> Hmm.. I'm not sure why this would be happening. It sounds like a bug on
> >> the data collection side. Which platform and version of Hyades are you
> >> using? I'll see if I can reproduce it...
> >>
> >> Thanks,
> >> Curt
> >>
> >> Lars wrote:
> >>
> >> > Hi,
> >>
> >> > I have been using Hyades for Java profiling. But I think there is
some
> >> > random behaviour when
> >> > using the memory leak analysis. Sometimes the 'collected items'
fields
> > (e.g.
> >> > the number of objects
> >> > that have been GC:d) are updated and sometime (most of the time) the
> > field
> >> > remains 0. Active instances fields are however
> >> > always updated. Forcing a GC from Eclpse does not have any effect.
> >>
> >> > The obvious reason would be if the JVM that I'm profiling have not
run
> > GC or
> >> > that there is a serious memory leak in my
> >> > application. But I have run the JVM with GC trace enabled and GC
kicks
> > in
> >> > every now and then. And since the fields are 0
> >> > for all objects I think that Eclipse has not recieved any collected
> >> > information.
> >>
> >> > Perhaps there is some issue with the different generations (new etc)
in
> > the
> >> > JVM that prevents GC from collecting my objects or is there
> > somethingelse
> >> > that controls this behaviour.
> >>
> >> > Any help appreciated
> >>
> >> > Lars
> >>
>