Hi there, Because we have started thinking about better ways to do IPC with our beloved client applications, we're investigating options.
Among the options is a direct connection with the SQLite database, which will involve a custom page cache implementation and/or a custom VFS layer for SQLite. We plan to enable this to processes that have a by the kernel set priority (like SCHED_IDLE), but investigation whether this can be opened to _all_ clients is ongoing. Work on this happens on this branch: http://git.gnome.org/browse/tracker/log/?h=sqlite-batch-locking Another track that we're following is implementing our own custom IPC. The measurements Adrien Bustany made compare D-Bus with a optimized custom UNIX domain socket mechanism. The conclusion is that with a custom UNIX domain socket mechanism we can come nearby optimal performance (which means the performance you'd get if you wouldn't have any IPC at all). http://git.mymadcat.com/index.php/p/ipc-performance/source/tree/master/report/report.odt http://pvanhoof.be/blog/index.php/2010/05/13/ipc-performance-the-report All this stuff is reproducable, opensource, and the measurements scripts and spreadsheet data are also available at this location: http://git.mymadcat.com/index.php/p/ipc-performance/source/tree/master/ Or if you're more like "Comon! I want to code, now!!" git clone git://git.mymadcat.com/ipc-performance Cheers, Philip -- Philip Van Hoof freelance software developer Codeminded BVBA - http://codeminded.be _______________________________________________ tracker-list mailing list tracker-list@gnome.org http://mail.gnome.org/mailman/listinfo/tracker-list