linux-kernel - Re: [GIT PULL] kdbus for 4.1-rc1

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Date:	Wed, 22 Apr 2015 03:51:51 +0200
From:	Bernd Petrovitsch <bernd@...rovitsch.priv.at>
To:	Havoc Pennington <hp@...ox.com>
Cc:	Johannes Stezenbach <js@...21.net>,
	Richard Weinberger <richard@....at>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	David Herrmann <dh.herrmann@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Jiri Kosina <jkosina@...e.cz>,
	Al Viro <viro@...iv.linux.org.uk>,
	Borislav Petkov <bp@...en8.de>,
	Andy Lutomirski <luto@...capital.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Tom Gundersen <teg@...m.no>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Daniel Mack <daniel@...que.org>,
	Djalal Harouni <tixxdz@...ndz.org>
Subject: Re: [GIT PULL] kdbus for 4.1-rc1

Hi all!

On Die, 2015-04-21 at 09:37 -0400, Havoc Pennington wrote:
[...]
> This has long been sort of the 'party line' and I've told many people
> this on the dbus mailing list over the years (almost exactly what you
> just said - that for performance-critical cases they should open a
> direct socket or use something else or whatever). Usually this makes
> app developers a little cranky because something that was going to be
> easy in their mind just got harder.

Perhaps these developers should rethink the design and protocols of
their apps - or pay the price for a stupid design which relies on heavy
IPC traffic (and usually - sooner or later - heavy network traffic).
Or - at least - deliver a (technical!) proof why this isn't feasible.

The case of "patching the kernel to lie about the kernel's command line"
just because some ill-designed user-space daemon misused it" was bad
enough and the above smells quite similarly.

Kind regards,
	Bernd
-- 
"I dislike type abstraction if it has no real reason. And saving
on typing is not a good reason - if your typing speed is the main
issue when you're coding, you're doing something seriously wrong."
    - Linus Torvalds

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