On Sat, Apr 5, 2014 at 5:55 PM, PCMan <pcman...@gmail.com> wrote: > On Sat, Apr 5, 2014 at 5:53 PM, PCMan <pcman...@gmail.com> wrote: >> Hello, >> here're good news and bad news. >> The good ones: >> 1. PCManFM-Qt now fully support Qt 5.1. >> 2. The X11 related code now uses XCB in Qt5, not Xlib. > The use of X11 related stuff is minimal. This won't affect our future > wayland port. > >> The bad ones: >> 1. Qt5 is much heavier than I thought. The memory usage dramatically >> increased after porting to Qt 5. >> 2. The Qt5 version of pcmanfm-qt uses about 10-20 MB of resident >> memory (according to htop). The shared memory increased, too. > Sorry, I mean the Qt5 build uses "additional" 10-20 MB, which is quite a lot. > >> 3. Some weird crashes never happened in Qt 4 were noted. >> >> Because of the significant increase of memory usage, I'm not so >> excited about the port to Qt 5. I'm not sure if there are possible >> ways to fine tune this part. :-(
OK, I examined this again with a memeory profiler (massif) and got some more info. The most memory hungry part is not in Qt 5. I ran my desktop inside Virtualbox so the result may be influenced by vbox. In the report generated by massif, the code used most memory is in VBoxOGLcrutil.so. So it's possibly caused by the OpenGL support of virtualbox. Later I'll try to test it again on my laptop, on which archlinux runs natively. Cheers! ------------------------------------------------------------------------------ _______________________________________________ Lxde-list mailing list Lxde-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxde-list
