Bug 76821

Summary:	Render is very slow for some files
Product:	poppler	Reporter:	Anatoly <aikorsky>
Component:	general	Assignee:	poppler-bugs <poppler-bugs>
Status:	RESOLVED DUPLICATE	QA Contact:
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Visualization of a part of a call graph Visualization of a part of a call graph

Description Anatoly 2014-03-31 08:28:54 UTC

Created attachment 96640 [details]
Visualization of a part of a call graph

Problem is similar to https://bugs.freedesktop.org/show_bug.cgi?id=66928.

Tested on poppler-0.25.2
Configuration: ./configure --prefix=/usr --sysconfdir=/etc \
      --localstatedir=/var --disable-static \
      --enable-cairo-output \
      --enable-xpdf-headers \
      --enable-libjpeg --enable-zlib \
      --enable-poppler-qt4 \
      --enable-poppler-glib

Example file located here https://razor.blackbeam.org/x.pdf (sorry for expired certificate).
Also here is callgrind output https://razor.blackbeam.org/callgrind.out (can be viewed with kcachegrind).

Also i attached a call graph visualization.

cmsDoTransform is called 6814 times which i think is reasonable due to height of an image on pdf page. But some funcs from liblcms2 and libm is called more then 100 000 000 times.

Comment 1 Anatoly 2014-03-31 08:30:38 UTC

Created attachment 96641 [details]
Visualization of a part of a call graph

Comment 2 Anatoly 2014-03-31 08:32:57 UTC

Render is 61 seconds for both pdftoppm and pdftocairo.

Comment 3 Thomas Freitag 2016-03-17 14:30:55 UTC


*** This bug has been marked as a duplicate of bug 90171 ***

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