On Sat, 2008-08-09 at 15:30 +0200, riccardo wrote: > Hi, > > > Testcase: > Fill the datastore with `many small' objects. > > Build: 2266
< ... > > > > + Sysprof statistics: > http://dev.laptop.org/~rlucchese/datastore_fill/small_files__b20000000.sysprof > > I can't see anything relevant for libxapian and it's bindings (xapian > dbg packages were installed) > > Quite a bit of time goes to librsvg functions rendering svg icons to > GtkPixbufs. Attaching strace to the journal activity and grepping "open" > on its output gives: > < > ... > open("/usr/share/icons/sugar/scalable/mimetypes/text-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/image-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/audio-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/video-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/text-uri-list.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/text-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/image-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/audio-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > open("/usr/share/icons/sugar/scalable/mimetypes/video-x-generic.svg", > O_RDONLY|O_LARGEFILE) = 11 > ... > > > > Does this come from sugar.mime or any sugar component ? > If yes, would it be possible to share one icon-cache between all sugar > modules ? > I repeated the test to get cProfile statistics for the journal activity: http://dev.laptop.org/~rlucchese/datastore_fill/cProfile_journal_while_filling_ds 98.4% of the total time goes to __data_store_created_cb. Perhaps this function could only set a flag and delay data retrieval (from the DS) to the next time the journal's window is shown? Riccardo _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
