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Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?

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From: Matt Mackall <mpm@...>
To: Andrea Arcangeli <andrea@...>
Cc: Rene Herman <rene.herman@...>, Ray Lee <ray-lk@...>, Bodo Eggert <7eggert@...>, Jeremy Fitzhardinge <jeremy@...>, Jesper Juhl <jesper.juhl@...>, Linux Kernel Mailing List <linux-kernel@...>, William Lee Irwin III <wli@...>, David Chinner <dgc@...>, Arjan van de Ven <arjan@...>
Subject: Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?
Date: Wednesday, July 18, 2007 - 8:41 pm

On Thu, Jul 19, 2007 at 02:15:39AM +0200, Andrea Arcangeli wrote:

How do you figure?

If you're saying that soft pages helps our 8k stack allocations, it
doesn't. The memory overhead of soft pages will be higher (5-15%,
mostly due to file tails in pagecache) than the level at which 8k
stacks currently run into trouble (1-2% free?).

Not helpful.

-- 
Mathematics is the supreme nostalgia of our time.
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Messages in current thread:
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Sun Jul 15, 1:17 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Sun Jul 15, 1:46 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Mon Jul 16, 9:43 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 6:28 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., utz lehmann, (Mon Jul 16, 7:26 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., John Stoffel, (Tue Jul 17, 10:45 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., utz lehmann, (Tue Jul 17, 7:46 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 9:00 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Mon Jul 16, 6:37 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 6:55 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Mon Jul 16, 7:45 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 8:28 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Tue Jul 17, 6:06 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Tue Jul 17, 10:38 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Tue Jul 17, 7:19 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Tue Jul 17, 7:57 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Thu Jul 19, 1:05 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Arjan van de Ven, (Tue Jul 17, 7:29 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Thu Jul 19, 1:20 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Mon Jul 16, 7:13 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 7:22 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Mon Jul 16, 7:40 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 8:57 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Shawn Bohrer, (Tue Jul 17, 12:14 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Tue Jul 17, 8:16 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Tue Jul 17, 12:52 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Zan Lynx, (Tue Jul 17, 1:45 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Jesper Juhl, (Mon Jul 16, 7:35 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Mon Jul 16, 7:07 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 7:12 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Mon Jul 16, 7:27 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Andrea Arcangeli, (Wed Jul 18, 8:15 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Wed Jul 18, 8:41 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Wed Jul 18, 8:48 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Wed Jul 18, 9:28 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Wed Jul 18, 8:39 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Eric Sandeen, (Fri Jul 27, 9:03 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Krzysztof Halasa, (Fri Jul 27, 1:18 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Andrea Arcangeli, (Wed Jul 18, 9:33 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Thu Jul 19, 5:23 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Andrea Arcangeli, (Thu Jul 19, 6:52 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Wed Jul 18, 9:37 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Andrea Arcangeli, (Thu Jul 19, 7:24 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Thu Jul 19, 7:44 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Eric Sandeen, (Fri Jul 27, 9:02 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Fri Jul 27, 1:38 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Satyam Sharma, (Fri Jul 27, 2:31 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Eric Sandeen, (Tue Jul 31, 11:53 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Dan Merillat, (Wed Aug 1, 4:11 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Andrea Arcangeli, (Wed Aug 1, 9:33 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Wed Aug 1, 11:44 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Dan Merillat, (Thu Aug 9, 9:03 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Wed Jul 18, 9:56 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Tue Jul 17, 10:38 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Matt Mackall, (Wed Jul 18, 12:54 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Wed Jul 18, 1:17 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 7:32 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Jesper Juhl, (Mon Jul 16, 6:54 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Mon Jul 16, 7:42 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Denis Vlasenko, (Thu Jul 19, 3:34 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Bodo Eggert, (Thu Jul 19, 4:04 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Jesper Juhl, (Mon Jul 16, 7:51 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 7:01 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Mon Jul 16, 6:54 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., William Lee Irwin III, (Tue Jul 17, 1:01 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Jesper Juhl, (Tue Jul 17, 7:39 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Tue Jul 17, 8:22 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Mon Jul 16, 6:53 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Rene Herman, (Mon Jul 16, 7:05 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Mon Jul 16, 7:15 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Alan Cox, (Tue Jul 17, 8:14 pm)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Ray Lee, (Wed Jul 18, 2:39 am)
Re: [PATCH][RFC] 4K stacks default, not a debug thing any mo..., Arjan van de Ven, (Sun Jul 15, 1:35 pm)

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