linux-kernel - Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1176623688.30350.23.camel@Homer.simpson.net>
Date:	Sun, 15 Apr 2007 09:54:48 +0200
From:	Mike Galbraith <efault@....de>
To:	Willy Tarreau <w@....eu>
Cc:	Ingo Molnar <mingo@...e.hu>, Nick Piggin <npiggin@...e.de>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair
	Scheduler [CFS]

On Sat, 2007-04-14 at 15:01 +0200, Willy Tarreau wrote:

> Well, I'll stop heating the room for now as I get out of ideas about how
> to defeat it. I'm convinced. I'm impatient to read about Mike's feedback
> with his workload which behaves strangely on RSDL. If it works OK here,
> it will be the proof that heuristics should not be needed.

You mean the X + mp3 player + audio visualization test?  X+Gforce
visualization have problems getting half of my box in the presence of
two other heavy cpu using tasks.  Behavior is _much_ better than
RSDL/SD, but the synchronous nature of X/client seems to be a problem.  

With this scheduler, renicing X/client does cure it, whereas with SD it
did not help one bit.  (I know a trivial way to cure that, and this
framework makes that possible without dorking up fairness as a general
policy.)

	-Mike

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/