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First time Performance of BIRT report [message #252096] Sat, 11 August 2007 08:34 Go to next message
Eclipse UserFriend
Originally posted by: vencat.b.gmail.com

Hi,
I deployed BIRT web viewer in tomcat and for some strange reason first time
execution of report takes long time. I tried precompiling all JSPs that are
part of webcontent but no improvement. Is it loading of jar files taking
longer or instantiation of Report Engine taking longer. No clue.

can anyone guide me how this could be improved.

thanks
Re: First time Performance of BIRT report [message #252113 is a reply to message #252096] Mon, 13 August 2007 01:14 Go to previous messageGo to next message
Tianli Zhang is currently offline Tianli ZhangFriend
Messages: 2862
Registered: July 2009
Senior Member
Hi,

Normally, the first preview will be slower than the second preview, when
first time execution of report, BIRT will initialize & load the engines
such as report engine, data engine and etc. This may cost some
performance. But only the first time, the second time will not reload and
initialize the engines. And if you use the frameset to preview the report.
During the execution BIRT will generate a report document(.rptdocument),
the I/O operation of disk will also cost some performance. But if you
repreview the report using the rptdocument, the performance will higher
than the first time.

Regards!
Re: First time Performance of BIRT report [message #252339 is a reply to message #252113] Tue, 14 August 2007 06:42 Go to previous messageGo to next message
leeguannan is currently offline leeguannanFriend
Messages: 5
Registered: July 2009
Junior Member
Tianli wrote:
How to repreview the rptdocument?
> Hi,

> Normally, the first preview will be slower than the second preview, when
> first time execution of report, BIRT will initialize & load the engines
> such as report engine, data engine and etc. This may cost some
> performance. But only the first time, the second time will not reload and
> initialize the engines. And if you use the frameset to preview the report.
> During the execution BIRT will generate a report document(.rptdocument),
> the I/O operation of disk will also cost some performance. But if you
> repreview the report using the rptdocument, the performance will higher
> than the first time.

> Regards!
Re: First time Performance of BIRT report [message #252445 is a reply to message #252339] Wed, 15 August 2007 00:59 Go to previous messageGo to next message
Tianli Zhang is currently offline Tianli ZhangFriend
Messages: 2862
Registered: July 2009
Senior Member
You can find more detail about how to use viewer in
http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php.

Regards!
Re: First time Performance of BIRT report [message #253474 is a reply to message #252445] Fri, 24 August 2007 22:36 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: vencat.b.gmail.com

When i start Tomcat and access the first report, the memory jumps about
40-50 MB. This is using BIRT 2.1.3. Is there any way to optimize this
please? This is only while using BIRT and our earlier crystal JRC
application did not have this issue.


"Tianli" <tzhang@actuate.com> wrote in message
news:ea0e3b48bd90d52b00572e07efb1e19d$1@www.eclipse.org...
> You can find more detail about how to use viewer in
> http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php.
>
> Regards!
>
Re: First time Performance of BIRT report [message #1115009 is a reply to message #252113] Mon, 23 September 2013 14:25 Go to previous message
Rafael Fogel is currently offline Rafael FogelFriend
Messages: 21
Registered: January 2013
Junior Member
Is there a way to initialize & load the engines wihtout task run? I would like to do this on the program's start, with others loads.
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