Re: Performance: Caching Fonts, stylesheets
In addition to what Sascha already said about FOP not using stylesheets for FO documents and piping RTF2FO together with FOP using SAX events if that's possible at all and you haven't done it already: - TrueType fonts are quite complex and take a lot of time to parse and embed. Particularly, the embedding process is difficult to cache although a certain degree of pre-processing could certainly be performed. But someone would have to go after that. Try using Type 1 fonts instead, if possible, because these can be embedded much faster. - You could try to identify elements in the FO generated by RTF2FO that are redundant and work with the author of RTF2FO to reduce the amount of information generated by the program. I've seen many FO editors which produce huge amounts of redundant information because they don't make use of property inheritance. Large FOs tend to use more memory and processing time which tends to slow things down. But then, I don't know if RTF2FO produces inefficient output. - Buy a faster CPU. :-) See also: http://people.apache.org/~jeremias/slides/FOP%20Optimization%20Presentation%20ApacheCon%20EU%202005.pdf On 01.12.2005 16:14:35 Thomas.Schmitt.extern wrote: > Hi, > > currently I try to to increase the performance in my FO2PDF process. > . > I have a complex 2 page rtf document, which is converted manually by RTF2FO. > The FO to PDF process takes about 4 secs. > I am using already a driver pool. > > Removing the true type fonts in the config xml saves approximately 1 second. > Can these fonts be cached somewhow ? > Is FOP using xslt to render the PDF ? Would a cashed stylesheet then be an > optimization ? > > Is there anything else I can do ? > > Thanx, Thomas > > Jeremias Maerki - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Performance: Caching Fonts, stylesheets
Title: Performance: Caching Fonts, stylesheets Hi, FOP is not using any stylesheet to render a pure XSL-FO document into PDF. Do you create a temporary XSL-FO file with RTF2FO or are you sending SAX-Events or a DOM to FOP? BTW, we are also distributing an RTF to XSL-FO processor, called JFO, that already comes with integration for FOP and other renderers. We are sending SAX-Events to FOP immediatelly after converting from RTF to XSL-FO. This saves a lot of time, because no XML stream must be parsed. I would be happy if you could download the latest build of JFO and make some tests. ;-) Cheers, Sascha NORTHBITSascha Schmidt [EMAIL PROTECTED] www.northbit.de From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, December 01, 2005 4:15 PMTo: fop-users@xmlgraphics.apache.orgSubject: Performance: Caching Fonts, stylesheets Hi, currently I try to to increase the performance in my FO2PDF process. . I have a complex 2 page rtf document, which is converted manually by RTF2FO. The FO to PDF process takes about 4 secs. I am using already a driver pool. Removing the true type fonts in the config xml saves approximately 1 second. Can these fonts be cached somewhow ? Is FOP using xslt to render the PDF ? Would a cashed stylesheet then be an optimization ? Is there anything else I can do ? Thanx, Thomas
