Re: Forking shell bombs

Riley Williams (Riley@Williams.Name)
Sun, 13 Jul 2003 10:10:22 +0100

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: > []On Behalf Of David Ford > Sent: Wednesday, July 09, 2003 4:08 PM > To: Ryan Underwood > Cc: > 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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