Messages in this thread | | | Date | Tue, 20 Jan 2015 17:08:42 +0100 | From | Johannes Stezenbach <> | Subject | Re: [PATCH 01/13] kdbus: add documentation |
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Hi all,
On Tue, Jan 20, 2015 at 03:53:53PM +0100, Djalal Harouni wrote: > On Tue, Jan 20, 2015 at 09:42:59AM -0500, Josh Boyer wrote: > > On Tue, Jan 20, 2015 at 9:31 AM, David Herrmann <dh.herrmann@gmail.com> wrote: > > > > > > If you run a 3.18 kernel, you can install kdbus.ko from our repository > > > and boot a full Fedora system running Gnome3 with kdbus, given that > > > you compiled systemd with --enable-kdbus (which is still > > > experimental). No legacy dbus1 daemon is running. Instead, we have a > > > bus-proxy that converts classic dbus1 to kdbus, so all > > > bus-communication runs on kdbus. > > > > FWIW, we've been building a "playground" repository for the kernel > > that contains this already for Fedora. If you have a stock Fedora 21 > > or rawhide install, you can use: > > > > https://copr.fedoraproject.org/coprs/jwboyer/kernel-playground/ > > > > which has the kernel+kdbus and systemd built with --enable-kdbus > > already. Easy enough to throw in a VM for testing. > > Another addition, if kdbus is installed and loaded, you could also use > systemd-nspawn to boot a full system (systemd compiled with > --enable-kdbus) in a container [1], kdbusfs will be mounted in the > container. > > There is also the busctl tool to query kdbus... > > http://www.freedesktop.org/wiki/Software/systemd/VirtualizedTesting/
It is reassuring that kdbus actually works :)
However, let me repeat and rephrase my previous questions: Is there a noticable or measurable improvement from using kdbus? IOW, is the added complexity of kdbus worth the result?
I have stated my believe that current usage of D-Bus is not performance sensitive and the number of messages exchanged is low. I would love it if you would prove me wrong. Or if you could show that any D-Bus related bug in Gnome3 is fixed by kdbus.
I would sooo love it if someone would finally post some data that proves kdbus is useful beyond systemd.
Thanks, Johannes
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