Hi, Michael Zangl schrieb: > I have finished my GSoC project. The aim was to improve the UI response > time by using OpenGL instead of Java2D for drawing.
your work is quite impressive! It's also really easy to install and use. I like the improvements in regard to responsiveness but I'm afraid it's not ready for a day-to-day use for my case (see below). > Feel free to test, report issues and give feedback. > Due to the geometry cache you might need to give JOSM some more memory > when loading big data sets. I'll tell you about my observations (limiting to bugs/oddities): * is there a memory leak? After several minutes zooming, moving, working,.. I get an oome (32gb ram, defaults for vm, I guess 8gb) * if I move the map sometimes a bunch of elements are not moved at first and it takes several seconds until they are (UI is responsive) * the opengl-Button should be some toggle button. Currently I can't tell from the button if opengl is enabled or not * zoom is slow. If i move and not all stuff is moved at first, the UI still stays responsive. If I zoom the UI is unresponsive until the scene rendering is finished. This is annoying and much worse as with Java2D. The deal-breaker for me is the slow zoom. It's kind of a tradeoff: really fast moving and slow zoom vs. slow moving and faster zoom. And as I tend to move the map when I'm zoomed in and use zoom a lot to either get a quick overview or for large movements (zoom out and in again), the OpenGL-pipeline does not give me an advantage right now. But I'm wondering why that is, as you noted > [...] but moving > the map, zooming and minor changes like hovering, selecting or moving > one primitive are faster. So zoom is fast for you (You didn't note it in your performance comparison)? Any ideas on that? I have a RadeonHD 6670 with Opensource Gallium stack, if that matters. And I'll test it on a intel hd 4xxx next week for comparison. Peda _______________________________________________ josm-dev mailing list josm-dev@openstreetmap.org https://lists.openstreetmap.org/listinfo/josm-dev
