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- From: dlj@fc.hp.com (patchnos)
- Subject: Re: Bringing a Sun to it's knees
- Sender: news@fc.hp.com (news daemon)
- Message-ID: <C1Gx66.5EC@fc.hp.com>
- Date: Tue, 26 Jan 1993 15:46:54 GMT
- References: <STEINAR.HAUG.93Jan26123427@delab.sintef.no>
- Organization: Hewlett-Packard, Fort Collins, CO
- X-Newsreader: TIN [version 1.1 PL8.5]
- Followup-To: comp.sys.hp
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-
- Steinar Haug (Steinar.Haug@delab.sintef.no) wrote:
- : fwp@CC.MsState.Edu (Frank Peters) writes:
- : > In article <T6AXBYAV@cc.swarthmore.edu> eoliver@ralph.cs.haverford.edu (Erik Oliver) says:
- : > : During our Operating Systems class, we were being asked to see for
- : > : ourselves that "modern" operating systems place limits on the number of
- : > : processes an individual user can run thus preventing over load.
- : >
- : > Interesting. Who came up with that theory? It isn't true and in many
- : > cases it isn't desirable.
-
- Depends on whether you are asking the system administrator
- or the user :-) The idea of limiting the maximum number of
- processes a single user can have probably makes sense to
- most system admins of multi-user systems. But what about
- workstations, which we typically think of as single-user
- systems (but we know _that's_ not always true)?
-
- : In my opinion, having a limit of 50 processes per use is *not* a sensible
- : default when systems arrive from HP preconfigured with X11R4, VUE etc. What
- : we have done on all our HPs is basically the same as is done by default on
- : our Suns: Set MAXUPRC to the total number of processes in the system minus a
- : reasonable safety margin for the system itself. We've never had any problem
- : with this.
-
- I agree. On HP-UX, /etc/master shows that the default maxuprc
- value is 50, the default nproc value is about 256. IMHO, this
- is a problem with having one set of defaults (/etc/master) for
- all PA machines -- 7XX workstations and 8XX servers/multiuser
- machines. Your method of setting maxuprc is a good suggestion,
- if your machines typically only have one user.
-
- I'll pass this note onto the Instant Ignition folks.
-
- : Steinar Haug, system/networks administrator
- : SINTEF DELAB, University of Trondheim, NORWAY
- : Email: Steinar.Haug@delab.sintef.no,
- : sthaug@idt.unit.no, steinar@tosca.er.sintef.no
-
- --
- Dave Jobusch 3404 E. Harmony Road MS#99 Email : dlj@fc.hp.com
- Hewlett-Packard Fort Collins, CO 80525-9599 HPDesk: david_jobusch@hp4000
- OSSD System Management T/303-229-6637 Radio : N0OJD
-