Re: [birt-dev]CheckIn: optimize the performance of archive file

[Sunitha Kambhampati <ksunithaghm@xxxxxxxxx>]

Thanks for the response.   I did try sometime earlier to profile BIRT 
using TPTP but I ran into some issues that I posted here on the
http://dev.eclipse.org/newslists/news.eclipse.birt/msg15185.html and did 
not get any response.

I also noticed that you also pointed a bug  
_https://bugs.eclipse.org/bugs/show_bug.cgi?id=173368_ 
</exchweb/bin/redir.asp?URL=https://bugs.eclipse.org/bugs/show_bug.cgi?id=173368> 
that can cause problems with TPTP since  BIRT, TPTP and GMF are not 
using the same version number for the plugins and features that hosts 
the batik package. This is fixed for 2.1.2.  I'll try to check TPTP out 
for 2.1.2. If anyone else has tried to use TPTP, with birt, it would be 
helpful.

Reducing disk I/O should be a good win for BIRT.

I was mostly concentrating on my own test reports, but you make a good 
point about trying to profile the unit tests to identify performance 
issues. I am thinking tests in report.engine.tests. But did you have any 
particular subset of test classes  in mind that would be good to look at 
first?  Anyhow, thanks for the suggestion.

regards,
Sunitha

Wenfeng Li wrote:

> Sunitha
>
> It will be a great help to use profiling tools in TpTp or Jprobe to
> profile engine performance. We are focus on reducing the disk I/O and
> report document size on disk now.  But we need more coverage to profile
> all engine unit tests to identify performance issues.
>
> Wenfeng
>
> -----Original Message-----
> From: birt-dev-bounces@xxxxxxxxxxx [mailto:birt-dev-bounces@xxxxxxxxxxx]
> On Behalf Of Sunitha Kambhampati
> Sent: Tuesday, February 13, 2007 12:52 PM
> To: birt-dev@xxxxxxxxxxx
> Subject: Re: [birt-dev]CheckIn: optimize the performance of archive file
>
>
> Hi,
>
> I saw this checkin mail and it got my attention as I am interested in 
> performance of BIRT also & I'd  like to contribute to improving 
> performance.
>
> While fixing this issue, are there any other known performance issues 
> that you may have found, that might be good to fix. If so, can you 
> please point it. I'd be interested in looking at it and maybe it will 
> also encourage others in the community who may want to look into it.
>
> Thanks very much.
> Sunitha.
>
> Wei Yan wrote:
>
>  
>
> > *- Summary:*
> >
> > *- Bugzilla Bug (s) Resolved:*
> >
> > *- Description:*
> > Optimize the performance of archive file
> > 1. serialize the metadata in flush.
> > 2. remove the unnecessary refresh in writer.
> > 3. support rw+ mode.
> > 4. add unit test
> >
> > *- Tests Description  :*
> > Unit Test
> >
> > *- Notes to Build Team:*
> > Check into both 2.1.3 and main branc
> > *- Notes to Developers:*
> >
> > *- Notes to QA:*
> >
> > *- Notes to Documentation:*
> >
> > *- Files Edited:*
> > cvs add -kkv
> >
> >    
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Alloc
> Table.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/NameT
> able.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/NameE
> ntry.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Alloc
> Entry.java"
>  
>
> > cvs ci -m "optimize the performance of archive file" -l
> >
> >    
> "/org.eclipse.birt.core.tests/test/org/eclipse/birt/core/archive/compoun
> d/ArchivePerformanceTest.java" 
>  
>
> "/org.eclipse.birt.core.tests/test/org/eclipse/birt/core/archive/compoun
> d/ArchiveFileTest.java" 
>  
>
> "/org.eclipse.birt.core.tests/test/org/eclipse/birt/core/archive/compoun
> d/BlockManagerTest.java"
>  
>
> > cvs ci -m "optimize the performance of archive file" -l
> >
> >    
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veEntryInputStream.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veConstants.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Block
> .java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/NameT
> able.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veFile.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veEntry.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/NameE
> ntry.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Alloc
> Table.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veEntryOutputStream.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Block
> Manager.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Entry
> Table.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Alloc
> ationTable.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veHeader.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Alloc
> Entry.java" 
>  
>
> "/org.eclipse.birt.core/src/org/eclipse/birt/core/archive/compound/Archi
> veReader.java"
>  
>
> > *- Files Added:*
> >
> > *- Files Deleted*
> >
> >
> > -Wei Yan
> >
> >
> > -----------------------------------------------------------------------
> > -
> >
> > _______________________________________________
> > birt-dev mailing list
> > birt-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/birt-dev
> >
> >
> >    
>
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