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RE: [cdt-dev] Changes to the index-database affecting performance
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I have been able to rerun my Firefox tests. They now take 11 minutes instead
of the previous 7, so yes, it's about a 50% degradation.
One thing I noticed is that you are using 10% of the heap. I usually run
-Xmx256 on my small Linux box which gives the cache only 25MB and the index
is about 100MB. Of course, changing it to 25% made not difference (D'oh!).
Anyway, this is a good start, we're still well under the 20 minutes and we
have some time to do some experimentation with the settings to see if we can
make it faster.
Cheers,
Doug Schaefer, QNX Software Systems
Eclipse CDT Project Lead, http://cdtdoug.blogspot.com
> -----Original Message-----
> From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On
> Behalf Of Doug Schaefer
> Sent: Friday, March 23, 2007 9:28 AM
> To: CDT General developers list.
> Subject: RE: [cdt-dev] Changes to the index-database affecting performance
>
> Cool, thanks Markus. That's close to the degradation that happened in
> 3.1.2
> when I did something similar. I'll rerun my firefox text to confirm.
>
> Doug Schaefer, QNX Software Systems
> Eclipse CDT Project Lead, http://cdtdoug.blogspot.com
>
>
> > -----Original Message-----
> > From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx]
> On
> > Behalf Of Schorn, Markus
> > Sent: Friday, March 23, 2007 8:13 AM
> > To: CDT General developers list.
> > Subject: [cdt-dev] Changes to the index-database affecting performance
> >
> > Hi,
> > I have changed the way the index accesses the file system. It no longer
> > relies on memory-mapped files.
> >
> > This leads to a performance degradation, indexing takes about 50%
> > longer. The bugs related to that:
> >
> > https://bugs.eclipse.org/bugs/show_bug.cgi?id=170542
> > https://bugs.eclipse.org/bugs/show_bug.cgi?id=165451
> >
> > Markus.
> > _______________________________________________
> > cdt-dev mailing list
> > cdt-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/cdt-dev
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