On Wed, 27 Jan 2010 12:34:18 +0800 Brian Wang <brian.wang.0...@gmail.com> said:
> I finally got time to test the latest genlist code. Sorry for the > delay. Here is the test result: > * Loading (homogeneous mode): very fast > * Scrolling (homogeneous mode) with block_count=1,=32: sluggish; I > tested it on the old code, and it was sluggish too... Damn the CPU... > I'm probably having too many Evas_Objects in the elm_win... In a > less complex app, the scrolling of a 600-item genlist seems quite > smooth. ooh thats not going to help either. the more objects u have the more the render time overhead as it needs to do more. dont keep too many objects around you don't need. that's my suggestion. > I have another newbie question: > When I drag an item around (not flick), the item will move to the > position of my finger with some delay when the dragging movement is > rapid. Is there a way to improve this or it is merely a hardware > limitation? well there is simply delay in input and rendering. input events come from the ts kernel device to x - then to ecore and it calls evas calls to call the event callbacks - and then a redraw is queued - and then.. well - the screen needs to re-render, then the next time the screen refreshes - u see the updates. this does take time. the slower your machine - the longer that time. i've done some pretty detailed analysis on this - on pretty comparable bits of hardware, efl is about the same or a little less latency than things like the iphone - yes - i've stared at detailed video footage comparisons (300fps) and done the checks counting frames of latency between finger moving and ui reacting - and... efl is right up there with its commercial competitors that everyone raves about having "amazingly good input response times" and "low latency", "feels good" etc. etc. all i can say is.. that's as good as it gets your your hardware given what u are asking it to render (so time to render frame is latency) and your current input drivers (there may be significant latency in the ts drivers - it is technically possible). -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) ras...@rasterman.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
