Off-topic: D-Bus in the kernel

Stef Bon stef at
Fri Sep 17 08:38:19 PDT 2010

  On 09/16/2010 06:23 AM, Soh Kam Yung wrote:
> Just spotted this interesting post about putting d-bus in the kernel [
> ]
> Fascinating work.

Well maybe fascinating, and possibly technical a challenge and possible,
but the question is about do we want a inter proces communication suite 
to be in the kernel??

In my opinion this should not go into the kernel. This is not the task 
of the kernel.

Stef Bon
> ====
> September 15, 2010
> D-Bus in the kernel, faster!
> Filed under: General, Hacking, Informatique, maemo — alban @ 4:03 pm
> In the last few weeks, I worked on having D-Bus directly in the Linux
> kernel to improve its performances. I based my work on what Ian Molton
> did. For now it’s just a prototype, but some benchmarks I did show a
> good performance improvement.
> [...]
> The first benchmark is dbus-ping-pong. It is a simple tool to call a
> D-Bus method and wait for the reply 10000 times. I tried it both on a
> KVM/i386 virtual machine and on a N900/arm.
>      * KVM/i386, without kdbus: 3.887s
>      * KVM/i386, with kdbus: 2.085s (x1.8)
>      * N900/arm, without kdbus: 28.00s
>      * N900/arm, with kdbus: 9.23s (x3)
> [...]
> ====

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