UseCustomHeap(), ReserveSize(), other....

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   I have five separate reports, each with around 150,000 lines (sometimes even more).  right now, i populate each row one at a time, and it takes around 30 seconds to complete.  I noticed a couple of functions in 11.22 called UseReportCustomHeap(), Use RowBatchAllocation(), and CXTPReportRows::ReserveSize().  I put UseReportCustomHeap() and UseRowBatchAllocation() in my apps, initinstance and it made report creation take 40 seconds instead of 30.  I removed UseRowBatchAllocation() and it reverted to 30 seconds.  I found ReserveSize() in the header, which I call like this:

m_DrawingReport.GetRows()->ReserveSize(25000,25000);

That had noaffect at all.  I stepped into it, and it calls CArray::SetSize(), but changes my numbers to growby 1 and maxsize=10.  I must be using them wrong.  

Does anybody have any ideas?

Thanks!

- David Little
- Houston Texas

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ddlittle Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 February 2004 Location: United States Status: Offline Points: 132	Post Options Post Reply Quote ddlittle Report Post Thanks(0) Quote Reply Topic: UseCustomHeap(), ReserveSize(), other.... Posted: 13 March 2008 at 10:59pm
	I have five separate reports, each with around 150,000 lines (sometimes even more). right now, i populate each row one at a time, and it takes around 30 seconds to complete. I noticed a couple of functions in 11.22 called UseReportCustomHeap(), Use RowBatchAllocation(), and CXTPReportRows::ReserveSize(). I put UseReportCustomHeap() and UseRowBatchAllocation() in my apps, initinstance and it made report creation take 40 seconds instead of 30. I removed UseRowBatchAllocation() and it reverted to 30 seconds. I found ReserveSize() in the header, which I call like this: m_DrawingReport.GetRows()->ReserveSize(25000,25000); That had noaffect at all. I stepped into it, and it calls CArray::SetSize(), but changes my numbers to growby 1 and maxsize=10. I must be using them wrong. Does anybody have any ideas? Thanks! - David Little - Houston Texas

markr Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 01 August 2004 Status: Offline Points: 443	Post Options Post Reply Quote markr Report Post Thanks(0) Quote Reply Posted: 17 March 2008 at 2:39pm
	Hi David, The best explanation I've found of these methods can be found here: https://forum.codejock.com/forum_posts.asp?TID=7921&KW=UseReportCustomHeap Look for Sergey's response post, currently near the bottom of the thread. This is the kind of stuff I wish CodeJock would address more thoroughly - either via the product documentation or in knowledge base articles of some kind. Anyway, I believe you'll need to produce a release build of your application to notice the effect of these methods.