Starting the kdbus discussions

[Greg KH]

On Thu, Jan 16, 2014 at 06:28:10PM +0100, Lennart Poettering wrote:
> On Fri, 10.01.14 13:47, Thiago Macieira (thiago at kde.org) wrote:
> 
> > On sexta-feira, 27 de dezembro de 2013 01:04:19, Lennart Poettering wrote:
> > > Heya,
> > > 
> > > We today reached a milestone in kdbus development, that we have all the
> > > bits in pieces in place to boot a full system with kdbus as system bus
> > > and no dbus-daemon in the mix for it. The only missing bit is policy
> > > enforcement, everything else is there.
> > 
> > Hi Lennart
> > 
> > Do you have any performance benchmarks done already? We're all technical here 
> > and we understand the new architecture improvements are worth it, but have you 
> > measured them?
> 
> Nope. 
> 
> I mean, what would a realistic benchmark even be? Currently you'd
> compare apples and oranges, since only libsystemd-bus is a native kdbus
> frontend, gdbus and libdus1 aren't. And as it turns out libsystemd-bus
> already is twice as fast against dbus-daemon as libdbus1 is according to
> some automotive guys who measured it.

Not "twice as fast", I'm pretty sure it was "two orders of magnitude
faster", which seemed crazy, but that's what they told me...

I'd love it if someone else could verify this or not, with a semi-real
workload.

thanks,

greg k-h