From: Linus Torvalds <torvalds@linux-foundation.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Mike Galbraith <efault@gmx.de>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <greg@kroah.com>,
Steven Rostedt <rostedt@goodmis.org>,
Jarkko Nikula <jhnikula@gmail.com>,
Tony Lindgren <tony@atomide.com>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC patch] CFS fix place entity spread issue (v2)
Date: Sun, 18 Apr 2010 16:23:26 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.2.00.1004181622120.14500@i5.linux-foundation.org> (raw)
In-Reply-To: <20100418225906.GA14337@Krystal>
On Sun, 18 Apr 2010, Mathieu Desnoyers wrote:
>
> Degradation of this particular workload is expected, because the nature of the
> large CFS spread issue favors Xorg: it gets litterally minutes of available
> vruntime, while most other threads (e.g. kernel build, audio playing, etc..)
> suffer from this.
In that case, I think your patch is fundamentally incorrect.
I care a _whole_ lot more about "usable desktop" than I care about some
inane "available vruntime". If the current behavior breaks your vruntime
rules, then the current behaviour is clearly _correct_.
Linus
next prev parent reply other threads:[~2010-04-18 23:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-18 13:13 Mathieu Desnoyers
2010-04-18 20:21 ` Linus Torvalds
2010-04-18 22:59 ` Mathieu Desnoyers
2010-04-18 23:23 ` Linus Torvalds [this message]
2010-04-19 9:25 ` Peter Zijlstra
2010-04-19 14:06 ` Mathieu Desnoyers
2010-04-19 14:43 ` Peter Zijlstra
2010-04-19 14:43 ` Peter Zijlstra
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