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Bug 314185

Summary:	Improve time to run & render reports
Product:	z_Archived	Reporter:	Carsten Lund <lund>
Component:	BIRT	Assignee:	Birt-ReportEngine-inbox <Birt-ReportEngine-inbox>
Status:	NEW ---	QA Contact:
Severity:	enhancement
Priority:	P3	CC:	mwu, wyan
Version:	unspecified
Target Milestone:	Future
Hardware:	All
OS:	All
Whiteboard:

Description Carsten Lund

2010-05-24 22:19:09 EDT

Build Identifier: 2.5.0

Current the run and render report seems mostly sequential. 
It seems that there are some fairly easy ways that running multiple threads could improve performance.
- run data set in parallel. If a report design has multiple data set; retrieve them in parallel.
- generate charts in parallel.

It is likely that this is not always semantically the same as the current implementation, and thus not backward compatible. But create a property that determine the maximum number of parallel threads used and have the default be 1.



Reproducible: Always

Comment 1 Wei Yan

2010-05-25 04:52:00 EDT

Actually the user can parallel the run task and the render task in current implementation.

The run task accepts a IPageHandler event call back, the user can register a handler to receive the events and start to render the report once the page has been created.