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

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Message-ID: <20070414161451.GC3099@elte.hu>
Date:	Sat, 14 Apr 2007 18:14:51 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Willy Tarreau <w@....eu>
Cc:	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>,
	Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]


* Willy Tarreau <w@....eu> wrote:

> BTW, I've tried your fork patch. It definitely helps forking because 
> it takes below one second to create 4000 processes, then the load 
> slowly increases. As you said, the children have to earn their share, 
> and I find that it makes it easier to conserve control of the whole 
> system's stability.

ok, thanks for testing this out, i think i'll integrate this one back 
into the core. (I'm still unsure about the cpu-hog one.) And it saves 
some code-size too:

   text    data     bss     dec     hex filename
  23349    2705      24   26078    65de kernel/sched.o.cfs-v1
  23189    2705      24   25918    653e kernel/sched.o.cfs-before
  23052    2705      24   25781    64b5 kernel/sched.o.cfs-after

  23366    4001      24   27391    6aff kernel/sched.o.vanilla
  23671    4548      24   28243    6e53 kernel/sched.o.sd.v40

	Ingo
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