SUMMARY: maxusers on solaris 2.4

From: Michael Hawk (mike@gi.net)
Date: Tue Jan 21 1997 - 14:01:48 CST


Hi,

My original question:

>Hi,
> I would like to know about some guidelines on setting kernel parameters
>on a solaris 2.4 machine (to be more specific, a Sparc 10).
>
> My main interest is maxusers. What is the default amount?
>
> How much memory is allocated for each additional user?
>
> Basically, we consistently have 40+ people logged in, and am curious
>if I need to tune this a tad (along with any other kernel variables).
>
> The sun and solaris faqs offer little assistance, as does the system(4)
>man page.
> Does anyone know of any other sources to check?
>
> Thanks.

SUMMARY:

I was told by several people to check out the book Sun performance Tuning by
Adrian Cockroft. Info on this book can be found at http://www.sun.com/smi/
ssoftpress/books/Cockcroft/Cockcroft.html

I was also told that sunworld archives are online...http://www.sun.com/
sunworldonline. Adrian Cockroft has a column here which often discusses
kernel tuning.

As far as default values on Solaris 2.4...I was told that maxusers defaults
to 40 by a couple people, but most say that it is dynamically allocated
based on the amount of RAM. Most people said that maxusers=Meg of RAM - 1.

One note that many people wanted to be sure that I knew (and I do :) is that
maxusers is not really the maximum number of users that a system has. It
is a variable which othe kernel uses in many different ways.

We do have "pt_cnt" set to a higher value to allow for greater simultaneous
connects.

Thanks to...

lance@Internex.NET
rsk@itw.com
glenn@uniq.com.au
Stuart.Little@dpcs-sw.co.uk
esilva@netcom.com
casper@holland.Sun.COM
lthomson@fsaia.qld.gov.au
cwarner@rdiatcmail.ed.ray.com
mbullock@pop.mindspring.com
raju@ecologic.net
asim@psa.pencom.com
coffindv@wangfed.com

-- 
-----------------------------------------------------------------------------
Michael Hawk                              Senior Network Technician
mike@gi.net                               Global Internet Network Services
(402)436-3067                             1-800-937-6431
-------------------------- http://www.gi.net --------------------------------



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