Hi, On 2015-Dec-01, Tobias Ellinghaus wrote with possible deletions: > Am Montag, 30. November 2015, 21:05:02 schrieb dt-l...@stefan-klinger.de: > > On 2015-Nov-30, Tobias Ellinghaus wrote with possible deletions: > > > Am Samstag, 28. November 2015, 13:37:41 schrieb dt-l...@stefan-klinger.de: > > > > I have the impression that lighttable is reacting much slower in rc2 > > > > (and master), than in previous versions (I am not using OpenCL, never > > > > have). When moving around the mouse cursor, the highlighted thumbnail > > > > lags behind about one third of a second. > > > > > > Could you try disabling "color manage cached thumbnails" in the core tab > > > of > > > preferences and see if it becomes faster? > > > > Yes, it gets about 30% faster, but the lag is still prominent when > > coming from 1.6.9. To get a more solid base and not just feeling, I > > have taken screencasts and counted the number of video frames it takes > > between the mouse pointer entering the slide and it being highlighted. > > An average over 15 measurements per darktable version/setting yields: > > > > 1.6.9: 2.53 frames > > rc2.0, CM'd thumbs off: 6.23 frames > > rc2.0, CM'd thumbs on: 9.11 frames > > > > The screencast was taken with 29.970 frames/s, which makes the old > > version of DT take less than 1/10 of a second, and the new one between > > 1/5 and 1/3 of a second. > > > > What does CM have to do with it? Is it more than the slide frame > > painted in light gray? > > When thumbnails are color managed we have to pass all thumbnail pixels > through > lcms2 before painting them on the screen. Could you also try setting > "plugins/lighttable/preview/full_size_preload_count" in > ~/.config/darktable/darktablerc to 0?
Yes, I have tested this just now. Setting `plugins/lighttable/preview/full_size_preload_count` to 0 has no (observable) effect. I have also verified this with `release-2.0rc3`. Cheers Stefan -- http://stefan-klinger.de o/X Send plain text messages only, not exceeding 32kB. /\/ \ ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
