Ghostscript very slow when trying to display the new Ubuntu-branded test page
Bug #939779 reported by
Till Kamppeter
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
bannertopdf |
Confirmed
|
High
|
Lars Karlitski |
Bug Description
Ghostscript takes ages to render the new PDF test page template and also test pages generated with it using bannertopdf. The template probably needs optimization.
To reproduce, run
gs /usr/share/
Suppressing anti-aliasing via
gs -sDEVICE=x11 /usr/share/
makes the output reasonably fast.
Printing with high resolutions needs to be tested.
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I'm pretty sure it's what Paul already suspected in bug #933489:
> 3. Each dot is being drawn a separate push stack, set matrix, moveto 0,0 four arc commands, etc. This could be optimised a bit.
Removing the dot patterns makes rendering considerably faster.
Are there any printers affected by this or is the testpage always going through poppler first (poppler seems to render it much faster)?