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RE: [cdt-dev] CPreprocessor
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Hmm, this becomes confusing. I guess my setup is different (firefox on
windows using cygwin).
Without having a proof, I claim that the new location map is faster
than the old one, because it is simpler. I never though that it could
make
up for the performance loss in the lexer, though.
I also see a slight improvement in the problem percentage (firefox: 6.83
-> 6.75), which may influence the performance (in either way).
All together, it looks like we can digest the 25% performance drop on
the lexer side and index firefox in less than 15min, that's what I am
happy about.
Here are my firefox numbers:
DOMScanner:
PDOMFastIndexerTask firefox-2.0 (2521 sources, 4108 headers)
PDOMFastIndexerTask Options: parseAllFiles=false,skipReferences=false,
skipTypeReferences=true.
PDOMFastIndexerTask Timings: 668000 total, 210188 parser, 293708
resolution, 117220 index update.
PDOMFastIndexerTask Errors: 0 unresolved includes, 0 unexpected errors.
PDOMFastIndexerTask Result: 579947 declarations, 1497415 references,
152186(6,83%) problems.
PDOMFastIndexerTask Cache[30mb]: 834387236 hits, 121874(0,0146%) misses.
CPreprocessor:
PDOMFastIndexerTask firefox-2.0 (2521 sources, 4108 headers)
PDOMFastIndexerTask Options: parseAllFiles=false,skipReferences=false,
skipTypeReferences=true.
PDOMFastIndexerTask Timings: 667513 total, 215723 parser, 304567
resolution, 125964 index update.
PDOMFastIndexerTask Errors: 0 unresolved includes, 0 unexpected errors.
PDOMFastIndexerTask Result: 603145 declarations, 1497095 references,
152045(6,75%) problems.
PDOMFastIndexerTask Cache[30mb]: 918390081 hits, 132025(0,0144%) misses.
Markus.
> -----Original Message-----
> From: cdt-dev-bounces@xxxxxxxxxxx
> [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Mike Kucera
> Sent: Mittwoch, 14. November 2007 20:07
> To: CDT General developers list.
> Cc: CDT General developers list.; cdt-dev-bounces@xxxxxxxxxxx
> Subject: RE: [cdt-dev] CPreprocessor
> Importance: Low
>
> Those are great numbers.
>
> Markus, I'm curious to know where you think the performance
> gain is coming
> from. Is it the new location map?
>
>
> Mike Kucera
> Software Developer
> IBM CDT Team, Toronto
> mkucera@xxxxxxxxxx
>
>
>
>
>
> Doug Schaefer
>
> <DSchaefer@xxxxxx
>
> m>
> To
> Sent by: "CDT General
> developers list."
> cdt-dev-bounces@e <cdt-dev@xxxxxxxxxxx>
>
> clipse.org
> cc
>
>
>
> Subject
> 11/14/2007 01:39 RE: [cdt-dev]
> CPreprocessor
> PM
>
>
>
>
>
> Please respond to
>
> "CDT General
>
> developers list."
>
> <cdt-dev@eclipse.
>
> org>
>
>
>
>
>
>
>
>
>
> I don't know. I'm showing a 10-20% improvement with my Firefox tests.
>
> Great work Markus, thanks!
>
> 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: Wednesday, November 14, 2007 5:03 AM
> > To: CDT General developers list.
> > Subject: RE: [cdt-dev] CPreprocessor
> >
> > I have rerun the tests over night and the result is less
> spectacular,
> > you can expect improvements from 0% to 4%. Probably the
> first results
> > were influenced by some other load on my machine, so I need to reset
> > expectations:
> >
> > In detail ACE -6%, TAO -0%, Linux Kernel -5%, Firefox -0%.
> > I am happy with the numbers, anyways. I am changing CDT to use
> > CPreprocessor.
> > I'll keep Scanner2 around until the end of the year, but plan on
> > removing it,
> > to get started on stuff that depends on the preprocessor.
> > Markus.
> >
> > > -----Original Message-----
> > > From: cdt-dev-bounces@xxxxxxxxxxx
> > > [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Schorn, Markus
> > > Sent: Dienstag, 13. November 2007 16:13
> > > To: CDT General developers list.
> > > Subject: [cdt-dev] CPreprocessor
> > > Importance: Low
> > >
> > > Hi,
> > > the performance tests for the indexer using the CPreprocessor went
> > > really good, I see an overall performance improvement of
> 5-10% (tested
> > > with ACE, TAO, Linux Kernel and Firefox).
> > >
> > > Given that I want to make the CPreprocessor the default
> rather sooner
> > > than later and support Scanner2 with -Dscanner=Scanner2
> for a while.
> > > Does anyone object to that?
> > > Markus.
> > >
> > > https://bugs.eclipse.org/bugs/show_bug.cgi?id=205272
> > > _______________________________________________
> > > cdt-dev mailing list
> > > cdt-dev@xxxxxxxxxxx
> > > https://dev.eclipse.org/mailman/listinfo/cdt-dev
> > >
> > _______________________________________________
> > cdt-dev mailing list
> > cdt-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/cdt-dev
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