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List: freedesktop-dbus
Subject: Re: About performance of D-Bus
From: Simon McVittie <simon.mcvittie () collabora ! co ! uk>
Date: 2008-10-31 19:18:40
Message-ID: 20081031191840.GA12882 () carbon ! pseudorandom ! co ! uk
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On Fri, 31 Oct 2008 at 17:23:16 +0200, Alberto Mardegan wrote:
> I was not especially thinking of the desktop, but rather to the Maemo platform
> and Telepathy specifically: for instance, telepathy connection managers
> typically communicate with 1-2 processes only
... for very large values of "2" that include Mission Control, the
presence UI, the chat UI, the VoIP UI, and future collaborative stuff.
Sorry, Telepathy is not a good example here!
> Yes, that's true. What I'm more concerned about is those (rare) moments where
> many messages are exchanged at the same time; for instance, when the network
> connection goes online the Telepathy connection managers must deliver
> information on the online contacts, their avatars, a few GetAll methods are
> called on the Telepathy connections and channels interfaces to retrieve their
> properties. This might have some sensible impact on the user experience.
This could be optimized by cleverer client-side code in telepathy-glib
(I'm already aware of some low-hanging fruit which I'll be working on
soon) and less round-trippy APIs (ditto) before we go anywhere near altering
D-Bus.
Simon
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