[gs-bugs] [Bug 689153] Performance problems reading PDF file

bugs.ghostscript.com-bugzilla-daemon at ghostscript.com bugs.ghostscript.com-bugzilla-daemon at ghostscript.com
Thu Feb 18 18:42:18 UTC 2010


------- Additional Comments From dave.eberly at artifex.com  2010-02-18 10:42 -------
Created an attachment (id=5967)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=5967&action=view)

The PDF attachment describes the performance problem.  The function
check_interpolation_required is called 2.3 billion times (it is inlined, but
makes no difference), which appears to be excessive.  The
garbage-collection-related function gc_trace is also expensive, but I do not
know whether this is a side effect of the aforementioned problem.

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