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From: Mike Castle <dalgoda@ix.netcom.com>
To: linux-kernel@vger.kernel.org
Subject: Re: threading question (results after thread pooling)
Date: Thu, 14 Jun 2001 16:00:43 -0700	[thread overview]
Message-ID: <20010614160043.G26165@thune.mrc-home.com> (raw)
In-Reply-To: <Pine.LNX.4.30.0106141632200.3287-100000@gene.pbi.nrc.ca>

On Thu, Jun 14, 2001 at 04:42:29PM -0600, ognen@gene.pbi.nrc.ca wrote:
> 2. The main thread sets up the data (which are global) and then signals
> that there is work to be done on the same condition variable. The first
> thread to get awaken takes the work. the remaining threads keep waiting.

For curiosities sake, at what point would this technique result in a
thundering herd issue?  Does it happen near the level at which the number of
schedulable entities equal the number of processors or does it have to be
much greater than that?

mrc
-- 
     Mike Castle      dalgoda@ix.netcom.com      www.netcom.com/~dalgoda/
    We are all of us living in the shadow of Manhattan.  -- Watchmen
fatal ("You are in a maze of twisty compiler features, all different"); -- gcc

  reply	other threads:[~2001-06-14 23:01 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-12 18:24 threading question ognen
2001-06-12 18:39 ` Davide Libenzi
2001-06-12 18:57 ` from dmesg: kernel BUG at inode.c:486 Olivier Sessink
2001-06-12 18:58 ` threading question Christoph Hellwig
2001-06-12 19:07   ` ognen
2001-06-12 19:15     ` Kip Macy
2001-06-12 19:29       ` Christoph Hellwig
2001-06-12 19:15     ` Christoph Hellwig
2001-06-13 12:20     ` Kurt Garloff
2001-06-13 13:35       ` J . A . Magallon
2001-06-13 14:17         ` Philips
2001-06-13 15:06           ` ognen
2001-06-12 21:44   ` Davide Libenzi
2001-06-12 21:48     ` ognen
2001-06-14 18:15       ` Alan Cox
2001-06-14 22:42         ` threading question (results after thread pooling) ognen
2001-06-14 23:00           ` Mike Castle [this message]
2001-06-12 21:58     ` threading question Albert D. Cahalan
2001-06-12 23:48       ` J . A . Magallon
2001-06-12 19:06 ` Kip Macy
2001-06-12 19:14   ` Alexander Viro
2001-06-12 19:25     ` Russell Leighton
2001-06-12 23:27       ` Mike Castle
2001-06-13 17:31   ` bert hubert
2001-06-14  6:45     ` Helge Hafting
2001-06-14 18:28   ` Alan Cox
2001-06-14 19:01     ` bert hubert
2001-06-14 19:22       ` Russell Leighton
2001-06-15 11:29       ` Anil Kumar
2001-06-14 23:05     ` J . A . Magallon
2001-06-16 14:16     ` Michael Rothwell
2001-06-16 15:19       ` Alan Cox
2001-06-16 18:33         ` Russell Leighton
2001-06-16 19:06         ` Michael Rothwell
2001-06-16 21:30           ` Coroutines [was Re: threading question] Russell Leighton
2001-06-12 22:41 ` threading question Pavel Machek
2001-06-14 23:20 threading question (results after thread pooling) Dieter Nützel

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