Re: [PATCH v3 00/13] Add kdbus implementation

On 01/20/2015 02:24 PM, Johannes Stezenbach wrote:

On Tue, Jan 20, 2015 at 07:26:09PM +0800, Greg Kroah-Hartman wrote:

quoted

On Tue, Jan 20, 2015 at 11:57:12AM +0100, Johannes Stezenbach wrote:

quoted

quoted

My guess is that the people porting from QNX were just confused
and their use of D-Bus was in error.  Maybe they should've used
plain sockets, capnproto, ZeroMQ or whatever.

I tend to trust that they knew what they were doing, they wouldn't have
picked D-Bus for no good reason.

The automotive developers I had the pleasure to work with would
use anything which is available via a mouse click in the
commercial Embedded Linux SDK IDE of their choice :)
Let's face it: QNX has a single IPC solution while Linux has
a confusing multitude of possibilities.

Greg, from my spell in IVI, I too have to say your faith in the
wisdom of IVI developers' choices is touching. I think D-Bus was 
in the main picked because it had some nice features, but then 
people realized it had no bandwidth, and the solution has been 
"make D-Bus faster", rather than "maybe we should explore 
other (mixed model) solutions". This isn't to say that I'm
against adding kdbus, but I don't think there's much strength to
the argument you make above.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/