On 2009-04-04 22:49-0400 Hazen Babcock wrote: >> I have a slightly more recent version of pangocairo (1.22.2) and I also get >> pretty much identical rendering speeds with text_clipping on or off. > > And now I'm not so sure about this result. Alan, can you try with the xcairo > driver? It seems noticeably slower to me now with text_clipping on. Slow > enough that I can almost see it drawing each string.
I measure no significant difference. I held down the return key (to go through the pages as quickly as possible) and got consistent timings (using the time command) with text clipping and consistent timings without text clipping. And without was consistently faster. But the difference was only 0.01 seconds, i.e., negligible. So device xcairo is consistent with the other cairo devices (none of which showed large changes in speed between text clipping on or off). I wonder if your recent rewrite of text handling in cairo is a factor. The above test was without your recent changes, i.e., revision 9774 of cairo.c. You might want to repeat your test with that revision. Also, I would highly advise using the time command (or whatever is equivalent on Mac OS X) to measure your timing results. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
