Message-ID: <1429112077.3355.22.camel@gmail.com>
Subject: Re: [GIT PULL] kdbus for 4.1-rc1
From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Michal Schmidt <mschmidt@redhat.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>,
        Andy Lutomirski <luto@amacapital.net>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Arnd Bergmann <arnd@arndb.de>,
        One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
        Tom Gundersen <teg@jklm.no>, Jiri Kosina <jkosina@suse.cz>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Daniel Mack <daniel@zonque.org>,
        David Herrmann <dh.herrmann@gmail.com>,
        Djalal Harouni <tixxdz@opendz.org>
Date: Wed, 15 Apr 2015 17:34:37 +0200
In-Reply-To: <552E7A3B.3060803@redhat.com>
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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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