[LAD] [Jack-Devel] jackd/jackdbus : D-Bus or not D-Bus...

Jussi Laako jussi at sonarnerd.net
Wed May 20 08:11:41 UTC 2009

alex stone wrote:
> Perhaps someone who knows could explain briefly how reliable the dbus
> daemon is in terms of frequency of calls made in and out, and the
> timing involved.

It is quite high latency, mostly due to single-process userspace switch
point. It performs reasonably well as long as overall message frequency
is rather low. It can also efficiently push quite large messages
through. But it is poor on handling high frequency of messages.

Each message passing involves extra context switches to and from daemon
and also copies of the message.

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