Re: Bug #449176: azureus: Downloads very slowly with GIJ

[Andrew Haley <aph@redhat.com>]

Shaun Jackman writes:
 > On Nov 21, 2007 11:30 AM, Andrew Haley <aph@redhat.com> wrote:
 > > Shaun Jackman writes:
 > >  > On Nov 21, 2007 6:31 AM, Andrew Haley <aph@redhat.com> wrote:
 > >  > >
 > >  > > Shaun Jackman writes:
 > >  > >  > Running the bit torrent client Azureus, downloading progresses
 > >  > >  > terribly slowly with the
 > >  > >  > java-gcj-compat JVM and works fine with Sun's JVM. If anyone has any
 > >  > >  > thoughts on why this might be the case, or has some time to
 > >  > >  > investigate, I'd appreciate the help in solving this bug.
 > >  > >  >
 > >  > >  > http://bugs.debian.org/449176
 > >  > >
 > >  > > What is the CPU meter doing?
 > >  > >
 > >  > > If the CPU is pegged at 100%, I'd do some profiling.  Also, starting
 > >  > > with the vm option -verbose:class will tell you if, by some accident,
 > >  > > you aren't using the precompiled classes.
 > >  >
 > >  > Hello Andrew,
 > >  >
 > >  > I can confirm that the CPU usage is <5% and that the precompiled
 > >  > classes are being used. Lots of messages like
 > >  > [Loaded (pre-compiled) java.lang.ClassLoader from <no code source>]
 > >
 > > OK, so you never see
 > >
 > > Loaded (bytecode)  ?
 > >
 > > with azureus classes
 > 
 > Oh, yes I do. Sorry, I thought it was the precompiled GCJ classes that
 > were important. I also see for Azureus...
 > [Loaded (bytecode) org.gudy.azureus2.ui.common.Main from
 > (file:/usr/share/java/Azureus2.jar <no certificates>)]
 > ... and for SWT...
 > [Loaded (bytecode) org.eclipse.swt.SWT from
 > (file:/usr/share/java/swt.jar <no certificates>)]

OK, so you're not picking up the precompiled classes for some reason.
Not good, but the fact that the CPU is only at 5% indicates that isn't
the core problem.

Andrew.

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