[news.eclipse.tools.jdt] Re: very slow compiling with 3.1 RC1

[Jerome Lanneluc <jerome_lanneluc@xxxxxxxxxx>]

That's interesting. Could you please file a bug report against JDT Core with 
this information, and also attach the class that causes the slow down (or a 
class that reproduces this problem), with its dependents.

Thanks,
Jerome

Donatas wrote:
> Did some research in this problem. So most of time takes when compiling
> particular two classes (log says "Writing new class file xxx.class") so it
> always slows for about 5 minutes when writing one class file. Also tried to
> do some profiling, please check attached file.
>
>
> Jerome Lanneluc wrote:
>
>
> > You can create a .options file with the following contents:
> >
> > org.eclipse.jdt.core/debug=ue
> > org.eclipse.jdt.core/debug/builder=ue
> >
> > And start eclipse with:
> > eclipse.exe -debug <path to your .options file> -vm <path to your
> > jre>\bin\java.exe
> >
> > Information will be printed to the DOS console.
> >
> >
> > Donatas wrote:
> >
> > > Such problems apperas on full rebuild, it seems that slowness are only in
> > > some packages. If there is info how can I turn on diagnostics messages
> > > for
> > > compiling  I can try to check what classes exactly causes such problems.
> > >
> > >
> > > Jerome Lanneluc wrote:
> > >
> > >
> > >
> > > > Our performance stats show that we are still positive in most areas:
> http://download.eclipse.org/downloads/drops/S-3.1RC1-200505271300/performance/org.eclipse.jdt.core.php?
>
> > > > Do you have details on what condition you see this slowdown ?
> > > >
> > > > Donatas wrote:
> > > >
> > > >
> > > > > Have anyone else noticed this problem ? 3.0 does full build about 5
> > > > > time faster than 3.1. My project contains more than 5000 classes.
> > > > > Source code
> > > > > compatibility is set to 1.4. I tried to change warnings  settings but
> > > > > this does not help. Any tips ?