The Linus profile is mostly a red herring here, because it is 1) a bad benchmark with a bunch of blocking round trips and 2) mostly profiling the gdbus bindings which are just one binding.

For a more in-depth performance discussion of dbus, check out http://lists.freedesktop.org/archives/dbus/2012-March/015024...

Above noted on linux-kernel here: http://thread.gmane.org/gmane.linux.kernel/1930358/focus=193...