heya, sounds worrying, i'd like to get to the bottom of this.
i guess the long term best solution would be to instruct cairo to only expose whatever thumbnails are changed when moving around with the mouse (but i tried quickly, it's not trivial to do and still work with all features). darktable -d perf -d lighttable is what you want to use to get timings for lighttable btw. -jo On Tue, Jan 19, 2016 at 5:45 PM, Scott <spectre...@gmail.com> wrote: > Hello all, > > I'm having an issue since upgrading to Darktable 2.0 (Pascal's PPA). > When in lighttable, if I just move my cursor around it takes ~1/3 > second before the thumbnail under the cursor is highlighted and the > "image information" updates to it. Searching the bug tracker and > archives show that I'm not the only one with this issue, but I haven't > seen any fixes for it. A couple references: > http://redmine.darktable.org/issues/10764 > http://sourceforge.net/p/darktable/mailman/message/34654461/ > > I have: > - Ubuntu 14.04 LTS > - 16 GB of RAM > - GeForce GTX 650 Ti BOOST (proprietary drivers, ) > - Intel Core i5-3570K (4 cores @ 3.40Ghz) > - All photos in my library are Canon CR2 > - 27" monitor (Dell U2713HM) is calibrated using dipcalGUI and set to > 2560x1440 resolution > > The first few things I've tried: > - Running darktable-generate-cache > - Running with '-d perf' (but it doesn't print anything when I simply > move the mouse around the screen) > - Changing the number of background threads > - Running with and without OpenCL > - Turning off color managed cache (this gave a slight improvement, but > still much slower than DT 1.6.9) > > I then deleted ~/.cache/darktable and ~/.config/darktable, and > imported only 5 pictures and the response time seemed very quick. I > then added a folder (50 images) and the response time lagged again. I > also noticed that it seems to depend on how zoomed in the images are > in lighttable. If I zoom out so the thumbnails are very small, then > the response time is good. As I zoom the thumbnails larger, this > response time gets worse and worse. 5 images across the screen seems > to be the worst, and then as I zoom in even closer it gets slightly > better. > > I then imported some more pictures so that I have nearly 200 in the > database/cache. Now even when lighttable is zoomed as as far as > possible, the response time is very slow. > > Possible output request: > $ ldd `which darktable` | grep gomp > libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007fa6da138000) > > Does anyone have any other recommendations to try? > > Thanks, > Scott > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Darktable-users mailing list > Darktable-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
