I can't give you too many hard and fast numbers, but I can tell you, anecdotally, that iText blows away FOP on performance and throughput. For large XML documents, with large tables, FO is almost unusable. We see out of memory errors all the time with it. I'm currently in the process of converting our FO based transforms to iText for this very reason.
Here's what I told my boss: FO can't be tuned because of our large tables. They'll always be in memory, and they're what's causing the out of memory errors. We eat up, literally, 512MB of memory when transforming a ~20MB XML document with large tables in it. With iText, I can take that same memory footprint, and drop it down to ~30MB. In addition, I can increase the overall throughput on the processor by at least an order of magnitude. He said, "make it so!" -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Frederik Dierickx Sent: Thursday, October 02, 2003 1:50 PM To: [EMAIL PROTECTED] Subject: [iText-questions] iText performance compared to FOP {Scanned} Hi there, I'm a newbie to both iText and this list and am wondering how fast iText is compared to FOP 0.20.5 processing. The project I'm currently working at uses FOP 0.20.5 to create PDF documents but we have major performance problems on generating reports. For every PDF we need to generate, a major XML is made with all available data of a given file. Most of the time, way to much information is gathered for the content we need to generate which takes a whole lot of time. Sometimes the overall process of creating the XML and transforming it takes 60+ seconds. The reason this was designed this way, was because we wanted something generic that would work with everything we needed to generate. At this time, this whole thing is becoming a bottle-neck and I would like to convince my project leader to rewrite this reporting logic with iText. Now you already see what I'm heading to... Can someone give me any details of how iText performs on this compared to FOP. Any concrete numbers of previous comparisons/tests? Any help appreciated, Frederik _________________________________________________________________ Ontvang je Hotmail & Messenger berichten op je mobiele telefoon met Hotmail SMS http://www.msn.be/gsm/smsservices ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions
