D-Bus efficiency question

[Curtis Maloney]

pete-c wrote:
> Hi,
> I was wondering if anyone knows how efficient dbus is in terms of memory
> usage? 
> For example, what is the level of difference between transfering data by
> writing to/reading of a file in comparison to sending/receiving a call over
> dbus?

This really depends on your packet/message format.  The padding for 
alignment in DBus (AIUI tuned for access performance) can seem quite 
wasteful... but if your message is just a raw array of bytes, the overhead 
is quite minimal.

If, OTOH, you send a dict of {sv}, the overhead can be quite significant, 
since each entry will have the key string 8-byte aligned, plus a padded 
variant type, plus aligned data....

-- 
Curtis Maloney
cmaloney at cardgate.net