From: Hedi Berriche <hedi@sgi.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mike Travis <travis@sgi.com>, Ingo Molnar <mingo@elte.hu>,
Greg Kroah-Hartman <gregkh@suse.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jack Steiner <steiner@sgi.com>,
Andrew Morton <akpm@linux-foundation.org>,
Robin Holt <holt@sgi.com>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Patch 1/1] init: Provide a kernel start parameter to increase pid_max v2
Date: Wed, 21 Apr 2010 17:59:34 +0100 [thread overview]
Message-ID: <20100421165934.GN16427@zorg.emea.sgi.com> (raw)
In-Reply-To: <20100421102350.4c222e6b@lxorguk.ukuu.org.uk>
On Wed, Apr 21, 2010 at 10:20 Alan Cox wrote:
| > of 32k will not be enough. A system with 1664 CPU's, there are 25163 processes
| > started before the login prompt. It's estimated that with 2048 CPU's we will pass
|
| Is that perhaps the bug not the 32K limit?
Doubt it: I just checked on an *idle* 1664 CPUs system and I can see 26844
tasks, all but few being kernel threads.
Worst case scenario i.e. 4096 CPUs system (+ typically thousands of disks) will
most certainly pain to boot, if it ever manages to, when pid_max is set to 32K.
Cheers,
Hedi.
--
Be careful of reading health books, you might die of a misprint.
-- Mark Twain
next prev parent reply other threads:[~2010-04-21 16:59 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-21 1:40 [Patch 1/1] init: Provide a kernel start parameter to increase pid_max Mike Travis
2010-04-21 1:52 ` [Patch 1/1] init: Provide a kernel start parameter to increase pid_max v2 Mike Travis
2010-04-21 9:23 ` Alan Cox
2010-04-21 16:59 ` Hedi Berriche [this message]
2010-04-21 17:18 ` Rik van Riel
2010-04-21 17:54 ` Mike Travis
2010-04-21 19:14 ` John Stoffel
2010-04-21 19:33 ` Hedi Berriche
2010-04-21 20:10 ` John Stoffel
2010-04-21 22:24 ` Greg KH
2010-04-21 22:49 ` Rik van Riel
2010-04-21 23:22 ` Greg KH
2010-04-22 9:28 ` Alan Cox
2010-04-22 12:58 ` Jack Steiner
2010-04-22 13:57 ` Robin Holt
2010-04-22 14:48 ` Linus Torvalds
2010-04-22 17:08 ` Robin Holt
2010-04-22 18:10 ` John Stoffel
2010-04-22 20:35 ` Andrew Morton
2010-04-25 7:16 ` Pavel Machek
2010-04-25 17:15 ` Linus Torvalds
2010-04-25 17:27 ` Linus Torvalds
2010-04-25 12:13 ` Pavel Machek
2010-04-26 19:48 ` [Patch 1/1] init: Provide a kernel start parameter to increase pid_max v3 Mike Travis
2010-04-26 20:46 ` Greg KH
2010-04-27 0:43 ` Mike Travis
2010-04-27 0:42 ` [Patch 1/1] init: Increase pid_max based on num_possible_cpus v4 Mike Travis
2010-04-21 17:58 ` [Patch 1/1] init: Provide a kernel start parameter to increase pid_max v2 Alan Cox
2010-04-21 19:12 ` Hedi Berriche
2010-04-21 19:51 ` Greg KH
2010-04-21 20:12 ` Hedi Berriche
2010-04-21 22:05 ` Jack Steiner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100421165934.GN16427@zorg.emea.sgi.com \
--to=hedi@sgi.com \
--cc=akpm@linux-foundation.org \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=gregkh@suse.de \
--cc=holt@sgi.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=steiner@sgi.com \
--cc=torvalds@linux-foundation.org \
--cc=travis@sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®