From: "Riley Williams" <Riley@Williams.Name>
To: "David Ford" <david+powerix@blue-labs.org>,
       "Ryan Underwood" <nemesis-lists@icequake.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Forking shell bombs
Date: Sun, 13 Jul 2003 10:10:22 +0100
Message-ID: <BKEGKPICNAKILKJKMHCAOELCENAA.Riley@Williams.Name>
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Hi all.

It sounds like what is required is some way of basically saying
"Don't permit new processes to be created if CPU usage > 75%"
(where the 75% is configurable but less than 100%).

Best wishes from Riley.
---
 * Nothing as pretty as a smile, nothing as ugly as a frown.


 > -----Original Message-----
 > From: linux-kernel-owner@vger.kernel.org
 > [mailto:linux-kernel-owner@vger.kernel.org]On Behalf Of David Ford
 > Sent: Wednesday, July 09, 2003 4:08 PM
 > To: Ryan Underwood
 > Cc: linux-kernel@vger.kernel.org
 > Subject: Re: Forking shell bombs
 >
 > No such thing exists.  I can have 10,000 processes doing nothing and 
 > have a load average of 0.00.  I can have 100 processes each sucking cpu 
 > as fast as the electrons flow and have a dead box.
 >
 > Learn how to manage resource limits and you can tuck another feather 
 > into your fledgeling sysadmin hat ;)
 >
 > david
 >
 > Ryan Underwood wrote:
 >
 >> Hi,
 >>
 >> On Tue, Jul 08, 2003 at 04:43:18PM -0400, jhigdon wrote:
 >>
 >>> Have you tried this on any 2.5.x kernels? Just curious to see what it 
 >>> does, I plan on giving it a go later.
 >>
 >> I haven't, but a previous poster indicated that they had (2.5.74) with
 >> the same results.
 >>
 >> I wonder if we could find an upper limit on the number of allowable
 >> processes that would leave the box in a workable state?  Unfortunately,
 >> I don't have a spare box to test such things on at the moment. ;)
 >>
 >> Thanks,

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