dbus uses unix domain sockets - aren't they slow ?

[sfora dim]

hi all,

I read that dbus uses unix domain sockets as the (main) underlying IPC.

But - is Unix domain sockets fast ? isn't only the fact that you need
to pass it a path everytime u send something doesn' mean it is slow ?
doesn't that mean the kernel needs to parse this path which is awfully slow ?
e.g., msg queues don't need a path..

thank you,
sfora