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

["Wenfeng Li" <wli@xxxxxxxxxxx>]

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
>
>
>-----------------------------------------------------------------------
>-
>
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