[reportlab-users] PDF Generation performance

Karl Putland reportlab-users@reportlab.com
Wed, 24 Dec 2003 15:30:22 -0700

A couple of years ago I sent a case study to Andy that contained
performance numbers for a HUGE report I used to run.  I'll see if I can
find it.  Maybe Andy has it laying around somewhere.  It's been a while
and I don't know if I've still got it.


On Wed, 2003-12-24 at 04:31, Shayan Raghavjee wrote:
> Hi guys,
> I'm having a major performance issue, and it's nothing that a pill off 
> the internet could solve, I was hoping you could give me some input. 
> I've been using Reportlab for a few months, but never really needed any 
> huge reports. Some reports have taken ages to build, but that was more 
> due to the SQL statement complexity than anything else.
> I'm currently working on something that doesn't require too much heavy 
> SQL stuff, but does generate PDFs with sometimes well over a hundred 
> pages. I've noticed Reportlab takes an age to build the file, a 100 page 
> document typically took 15 minutes, which is far outside the required 
> speed. I'm not entirely sure where the problem lies. The form is 
> basically a table with some required information on top, and another at 
> the bottom, which is a table of tables. Maybe it's too complex?
> How long should it take for 100 pages? Is there any way to make it 
> faster, using templates or something, because most of the info is 
> duplicated.
> Any help, or ideas would be welcomed with open arms.
> Thanks,
> Shayan Raghavjee
> St. James Software
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Karl Putland <karl@putland.linux-site.net>