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using gtk3 + eclipse-themes is snarly slow #226

scalpel4k opened this issue Feb 12, 2015 · 8 comments

using gtk3 + eclipse-themes is snarly slow #226

scalpel4k opened this issue Feb 12, 2015 · 8 comments


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@scalpel4k scalpel4k commented Feb 12, 2015

Hi jeeeyul,

I realised when I use eclipse with the gtk3 render engine and have your theme engine render the UI eclipse is getting really slow. It's basically impossible to properly work with eclipse in this combination. Each button press, for instance, takes a few seconds until it gets serviced.
When I switch to the default (gtk) eclipse theme things are getting better performancewise - not perfect though. Of course, eclipse then looks plain ugly.
My resolution right now is to use the old gtk2 render engine.

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@pilophae pilophae commented Feb 25, 2015


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@ksmalik1 ksmalik1 commented May 4, 2015

how did you switch the gtk version? My eclipse has also slowed down considerably since installing the theme.

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@scalpel4k scalpel4k commented May 8, 2015

you have to set the environment variable SWT_GTK3=0

On Monday 04 May 2015 14:50:35 ksmalik1 wrote:

how did you switch the gtk version? My eclipse has also slowed down
considerably since installing the theme.

Reply to this email directly or view it on GitHub:
#226 (comment)

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@Hufschmidt Hufschmidt commented Apr 29, 2016

I can confirm this issue on [X]Ubuntu 16.04 (LTS) with both Eclipse 4.5.2 and 4.6, using XFCE 4.12, tested with Greybird and default XFCE Theme. Jeeeyul-ET is latest from update-site at the time of this writing...

Additional Info:

Tested Eclipse running both with (default) GTK3 Theme-Engine and old GTK2 using
--launcher.GTK_version 2

As soon as I enable Jeeeyul-Eclipse-Theme under General -> Appearance -> Theme the 'slowness' starts, most noticeable when resizing a view (like explorer, outline, etc).

Switching back to Theme Classic or GTK3/GTK2 all runs smooth again, restarting eclipse after switching to Jeeeyul-ET does not resolve this either.

Switching to different Presets with Jeeeyul-ET enabled also has no effect on performance.

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@ghost ghost commented Aug 27, 2016

same here - xubuntu 16.04 / Neon Release (4.6.0)

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@ccrisan ccrisan commented Nov 23, 2016

Disabling shadows considerably improved the performance for me.

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@bmarwell bmarwell commented Jul 24, 2017

@ccrisan how do you disable shadows? Thanks.

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@ccrisan ccrisan commented Jul 24, 2017

@bmhm you have a General > Window Spacing > Cast Shadow option.

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