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

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Date:	Wed, 15 Apr 2015 17:34:37 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Michal Schmidt <mschmidt@...hat.com>
Cc:	Richard Weinberger <richard.weinberger@...il.com>,
	Andy Lutomirski <luto@...capital.net>,
	Al Viro <viro@...iv.linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Tom Gundersen <teg@...m.no>, Jiri Kosina <jkosina@...e.cz>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Daniel Mack <daniel@...que.org>,
	David Herrmann <dh.herrmann@...il.com>,
	Djalal Harouni <tixxdz@...ndz.org>
Subject: Re: [GIT PULL] kdbus for 4.1-rc1

On Wed, 2015-04-15 at 16:48 +0200, Michal Schmidt wrote:
> On 04/15/2015 09:31 AM, Mike Galbraith wrote:
> > it seems [systemd] has now mandated group scheduling.
> 
> What makes you think so?

If group sched is available, systemd decides on its own to use it, 
thus making the decision to eat that overhead for me should I happen 
to boot say an enterprise kernel to do some performance measurements. 

Perhaps there is a way to beg it to please not do that, but if so, I 
didn't find it in time.  The service that started group scheduling was 
explicitly disabled by me, but systemd started it at boot despite 
that.  Perhaps I didn't express my wishes clearly enough, or I need to 
burn a virgin or something to become worthy of its attention, dunno.

Applying my axe to its tentacles fixed the communication issue.

        -Mike
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