Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!unmvax!unm-la!lanl!a!chn
From: chn@a.lanl.gov (Charles Neil)
Newsgroups: comp.unix.aux
Subject: Changing kernel parameters
Keywords: kconfig, available memory, pstat bug
Message-ID: <832@a.lanl.gov>
Date: 21 Feb 89 18:51:34 GMT
Distribution: usa
Organization: Los Alamos National Laboratory
Lines: 25


What's going on here?  I added another 4 MB memory to my Mac II, for
a total of 8.  I booted A/UX, and got the (reassuring) numbers
 
        total memory size 8388608 bytes
        available memory  7012352 bytes

Then I went in to "tune" the kernel parameters and used kconfig -n /unix
to set the following:

        NBUF=2500
        NINODE=600
        NFILE=400

Upon rebooting, available memory dropped to 4382720.  I did a pstat
and got "System name list out of date".  I heard about the pstat bug,
so I dropped NBUF to 999.  Now available memory was 6000640.  When I
reduced NINODE to 200 and NFILE to 200, I got 6078464 available.  

Can anyone explain what's going on?  If anyone with 8 MB of memory has
a good set of kernel parameters, could he/she email it to me?
-- 
 
Charlie Neil (chn@lanl.gov)
Los Alamos National Laboratory (505) 665-0978