Bug 689248

Summary: The PDF interpreter performance
Product: Ghostscript Reporter: leonardo <leonardo>
Component: PDF InterpreterAssignee: Robin Watts <robin.watts>
Status: RESOLVED WORKSFORME    
Severity: normal CC: christinedelight.top85
Priority: P4    
Version: 0.00   
Hardware: PC   
OS: Windows XP   
Customer: Word Size: ---

Description leonardo 2007-05-24 15:24:30 UTC 
I disabled the shading rasterization with immediate returning from patch_fill 
in gxshade6.c . The file Bug689189.pdf renders to -r140 display in 23 seconds. 
Adobe does in 5 seconds including shadings.
Comment 1 Ray Johnston 2009-05-10 09:00:40 UTC 
This seems like it should be Michael's (internal shading speed). Reassigning.
Comment 2 Michael Vrhel 2011-06-11 23:38:46 UTC 
Assigning to Robin since he is working in this area.
Comment 3 Ken Sharp 2017-07-28 07:28:12 UTC 
Testing this on my PC with a release version of Ghostscript; MuPDF saves the file to PNG in 3.1 seconds, Acrobat takes 5.1 to save an RGB PNG file and Ghostscript takes 7.1 seconds. Admittedly we are still slower than the others, but not *that* much slower.

Especially given that the Acrobat time was taken when the Acrobat was already loaded, and the file displayed, whereas Ghostscript was timed from the command line.

I'm closing this because I expect we're as good as we're likely to get.