speed up running time

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Hi,
Our application is built using
the Quick PDF Library (.dll).  So we now write out a PDF file using the
Quick PDF library whereas we used to write out ascii PDF commands directly
using our own code.  The library helps out greatly with many aspects of
the proceiss.  However, we are now finding that the write out is taking
unacceptably long for large files.  A write out that used to take two
minutes can now take  up to an hour.  Most of what we are writing is
lines.  Is there a way we can be sure we are writing these lines most
efficiently?

Thanks,
Dezhi

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Dezhi Members Profile Find Members Posts Beginner Joined: 25 Jan 16 Status: Offline Points: 11	Post Options Post Reply Quote Dezhi Report Post Thanks(0) Quote Reply Topic: speed up running time Posted: 25 Jan 16 at 5:44PM
	Hi, Our application is built using the Quick PDF Library (.dll). So we now write out a PDF file using the Quick PDF library whereas we used to write out ascii PDF commands directly using our own code. The library helps out greatly with many aspects of the proceiss. However, we are now finding that the write out is taking unacceptably long for large files. A write out that used to take two minutes can now take up to an hour. Most of what we are writing is lines. Is there a way we can be sure we are writing these lines most efficiently? Thanks, Dezhi

tfrost Members Profile Find Members Posts Senior Member Joined: 06 Sep 10 Location: UK Status: Offline Points: 437	Post Options Post Reply Quote tfrost Report Post Thanks(0) Quote Reply Posted: 25 Jan 16 at 6:03PM
	You need to show some of your code. What library command is used to write the file? Have you checked where the delays occur, in building the PDF or in writing it to disk? How big is the resulting PDF?

Dezhi Members Profile Find Members Posts Beginner Joined: 25 Jan 16 Status: Offline Points: 11	Post Options Post Reply Quote Dezhi Report Post Thanks(0) Quote Reply Posted: 25 Jan 16 at 7:11PM
	The resulting PDF file size is 8,814KB. We write out thousands of lines. When I use debug tool to break all, it is very often stopping at ret = DPLDrawLinePtr(InstanceID, x1, y1, x2, y2); in popdfline(double x1, double y1, double x2, double y2) { DPLDrawLineType DPLDrawLinePtr = NULL; int ret; DPLDrawLinePtr = (DPLDrawLineType)GetProcAddress(dllHandle,"DPLDrawLine"); ret = DPLDrawLinePtr(InstanceID, x1, y1, x2, y2); }