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Bug 645796 - [performance] high CPU usage when viewing a detailed PDF (map)
[performance] high CPU usage when viewing a detailed PDF (map)
Status: RESOLVED OBSOLETE
Product: evince
Classification: Core
Component: PDF
2.32.x
Other Linux
: Normal normal
: ---
Assigned To: Evince Maintainers
Evince Maintainers
Depends on:
Blocks:
 
 
Reported: 2011-03-27 03:06 UTC by Jonathon Conte
Modified: 2015-10-16 21:00 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Jonathon Conte 2011-03-27 03:06:18 UTC 
I am running evince 2.32.0-0ubuntu12 on a development version of Ubuntu 11.04.

I have saved a local copy of the San Francisco Bike Map which is available at the following link:

http://www.sfbike.org/download/SF_Bike_Map_2010.pdf

Whenever I try to open this file, my CPU is under high load and evince becomes unresponsive. The file does eventually open but it is a very poor user experience. My computer is a desktop PC with a 2.66GHz Pentium 4 CPU and 768MB of RAM.
Comment 1 Germán Poo-Caamaño 2013-02-17 07:39:04 UTC 
It has improved, but still is evince 3.7 feels unresponsive for some seconds.  Acroread Reader 9 is faster on this.
Comment 2 Jose Manuel 2015-01-07 13:00:59 UTC 
This issue might be related to what happens in both okular and evince with https://launchpadlibrarian.net/193465596/HotMobile12-final72.pdf (as discussed in https://bugs.launchpad.net/ubuntu/+source/evince/+bug/1404393)
Comment 3 Jose Manuel 2015-01-07 13:04:06 UTC 
Bug https://bugzilla.gnome.org/show_bug.cgi?id=735496 could also be related to this one.
Comment 4 Germán Poo-Caamaño 2015-01-07 16:17:43 UTC 
Very likely it is an issue in poppler (the library used by Evince and Okular to render PDF).  In such case, this bug should be moved to poppler's bugzilla (freedesktop).  But before, it should be tested against poppler master with either poppler-glib-demo or pdftocairo.
Comment 5 madbiologist 2015-01-07 23:33:35 UTC 
When evince is used to open this file from the command prompt, 10 copies of the following message are printed in the terminal:

*** BUG ***
In pixman_region32_init_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug
Comment 6 Germán Poo-Caamaño 2015-10-16 21:00:26 UTC 
With newer poppler/evince I do not see the issue.  It takes a couple of seconds to render, but that is.