Hello Olof,

The entire file has no effects (hence going to 'fastest' in the
settings has no effect), no patterns, and no blur. Most elements do,
however, have some degree of transparency.

Thanks,
Saar.

On Mon, Mar 21, 2016 at 9:34 AM, Olof Bjarnason
<olof.bjarnason@...400...> wrote:
> Are you using any effects on the paths, e.g. bitmap patterns, blur /
> transparency or other?
>
> I have also experienced severe performance problems when zooming in paths
> with bitmap patterns on them.
>
>
>
> Mvh
>
>
> /Olof
> -----------------
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>
> On 21 March 2016 at 00:07, Saar Drimer <saar@...3359...> wrote:
>>
>> Hello everyone,
>>
>> I work with Inkscape nearly every day, but am now experiencing some
>> painfully slow performance with some files (that I cannot share right now,
>> sorry!) I'm working with Inkscape 0.91 r13725 on Ubuntu 15.10 with an
>> i7-5500 and 16GB of RAM.
>>
>> The designs are not particularly complex, but have one feature that
>> might be relevant: I'm working with dimension accurate objects that
>> can be very small, 0.1mm and below (I design printed circuit boards).
>> The slowness becomes painful when zoomed in onto the small objects; it
>> happens when I try zooming, choosing objects, moving them, and even
>> changing tools from 'node' to 'select'. nearly every such operation I
>> get the greyed-out Ubuntu stall. Working on the design when zoomed out
>> is not practical, but it is quite a bit faster performing.
>>
>> Another thing that's happening that could be related is the following
>> prompts keep appearing on the console:
>>
>> (inkscape:15569): Pango-CRITICAL **: pango_font_family_list_faces:
>> assertion 'PANGO_IS_FONT_FAMILY (family)' failed
>>
>> (inkscape:15569): Gtk-CRITICAL **: IA__gtk_tree_view_scroll_to_cell:
>> assertion 'tree_view->priv->tree != NULL' failed
>>
>> I could not find any report for how to handle these, and discover if
>> they are related to the performance problems.
>>
>> Searching for a solution through looking at bug reports, I've tried:
>>
>> * Running with fresh preferences.xml
>> * Geometric bounding box
>> * Reducing the complexity of the design
>> * Hiding layers (there are 24 layers) to only ones that are relevant
>> for the operation (usually only two layers)
>> * Hiding rulers and scroll-bars
>> * Maximising memory and threads (with restart)
>>
>> I'm out of ideas, and I hope that someone might be able to recommend
>> something. If there are no ideas, I'll work on a design that I can
>> share so that we could work though it.
>>
>> Thanks,
>> Saar.
>>
>>
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>