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From: Paul Larson <plars@austin.ibm.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Hubertus Franke <frankeh@us.ibm.com>,
	Rik van Riel <riel@conectiva.com.br>,
	Andries Brouwer <aebr@win.tue.nl>,
	Andrew Morton <akpm@zip.com.au>,
	andrea@suse.de, Dave Jones <davej@suse.de>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Linux-2.5 fix/improve get_pid()
Date: 08 Aug 2002 17:34:02 -0500	[thread overview]
Message-ID: <1028846042.19434.342.camel@plars.austin.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0208081500550.9114-100000@home.transmeta.com>

On Thu, 2002-08-08 at 17:02, Linus Torvalds wrote:
> 
> On Thu, 8 Aug 2002, Hubertus Franke wrote:
> > 
> > That is true. All was done under the 16-bit assumption
> > My hunch is that the current algorithm might actually work quite well
> > for a sparsely populated pid-space (32-bits).
> 
> I agree.
The original issue that I had with all of this is the fact that if the
current algorithm can't find an available pid, it just sits there
churning forever and hangs the machine.  My original patch was really
just a very basic fix for that (see the 2.4 tree).  This makes it far
more unlikely for us to max out, but if we do aren't we just going to
have the same trouble all over?

Thanks,
Paul Larson


  parent reply	other threads:[~2002-08-08 22:37 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-08 21:43 Hubertus Franke
2002-08-08 22:02 ` Linus Torvalds
2002-08-08 22:26   ` Linus Torvalds
2002-08-08 23:09     ` Albert D. Cahalan
2002-08-09  3:26       ` Chris Adams
2002-08-09  7:04         ` Albert D. Cahalan
2002-08-09  8:48           ` Helge Hafting
2002-08-09 10:32             ` Alan Cox
2002-08-09  9:35               ` Andrew Morton
2002-08-09 10:37               ` Andries Brouwer
2002-08-09 13:00           ` Chris Adams
2002-08-09 14:39             ` Albert D. Cahalan
2002-08-09 13:59           ` Rik van Riel
2002-08-09 14:57             ` Albert D. Cahalan
2002-08-08 22:34   ` Paul Larson [this message]
2002-08-08 22:44     ` Rik van Riel
2002-08-08 22:37   ` Rik van Riel
2002-08-09  1:49     ` Andries Brouwer
2002-08-09 19:34   ` Paul Larson
2002-08-09 20:13     ` Paul Larson
2002-08-09 20:40     ` Andries Brouwer
2002-08-09 21:23     ` Linus Torvalds
2002-08-09 21:42       ` Linus Torvalds
2002-08-09 21:46         ` Paul Larson
2002-08-09 22:04           ` Linus Torvalds
2002-08-10 17:23             ` Jamie Lokier
2002-08-10 18:33               ` Linus Torvalds
2002-08-10 18:48                 ` Jamie Lokier
2002-08-11 20:41                   ` Alan Cox
2002-08-11 19:58                     ` Jamie Lokier
2002-08-11 21:23                       ` Alan Cox
2002-08-11 20:10                         ` Jamie Lokier
2002-08-12  8:56             ` Padraig Brady
2002-08-12 10:37               ` Alan Cox
2002-08-12  9:21                 ` Padraig Brady
2002-08-12 14:40             ` Paul Larson
  -- strict thread matches above, loose matches on Subject: below --
2002-08-12 16:15 Jim Houston
2002-08-09  0:53 Hubertus Franke
2002-08-08 21:50 Hubertus Franke
2002-08-08 18:56 Hubertus Franke
2002-08-08 19:15 ` Rik van Riel
2002-08-08 19:18 ` Paul Larson
2002-08-07 22:03 Paul Larson
2002-08-07 23:06 ` Andrew Morton
2002-08-08  0:24   ` Andries Brouwer
2002-08-08 19:42     ` William Lee Irwin III
2002-08-08 20:47       ` Andries Brouwer
2002-08-08 20:24   ` Linus Torvalds
2002-08-08 21:30     ` H. Peter Anvin
2002-08-08 21:45     ` William Lee Irwin III
2002-08-09  4:42     ` William Lee Irwin III

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