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From: jag@aix.aix.kingston.ibm.com (Jay Goldberg)
Newsgroups: comp.unix.sysv386
Subject: Re: AIX on Model 80 with X windows question
Message-ID: <3395@aix.aix.kingston.ibm.com>
Date: 10 Sep 90 14:33:48 GMT
References: <14059@rouge.usl.edu>
Organization: IBM Corporation, Kingston NY
Lines: 44

In article <14059@rouge.usl.edu> pcb@gator.cacs.usl.edu (Peter C. Bahrs) writes:
>I have a model 80 with 300mb hd, 8mb memory and a 20mhz processor.
>I have just loaded the new release of IBM AIX 1.2.  
>
>X Windows is kind of slow.  When I run ico -r, it doesn't move across the
>screen...it chunks across.  The mouse also freezes for small time
>periods and then catches up.
>
>I am using a 10mb page space.
>
>Any ideas on fine tuning this machine?

Sounds a lot like my configuration at work; here's what I did:

	/usr/sys/bin/ldminit -c patchdeck -l /unix

then reboot.  Here's the file 'patchdeck', which will let ldminit 
zap tunables in your kernel for you:

# PATCHDECK FILE
#
# patchdeck for ldminit that sets the configurable constants set in
# the master and system file.
# configuration for unix3
#
# change NPROC from 74 to 150 - Size of system process table
v+44:150:4
# change MAXUP from 25 to 100 - Max.number of procs per user
v+220:100:4
# change NFILE default = (240+(18*USERS)), 294 - Size of syste file table
v+12:500:4
# change default file size      default = 8192
def_f_lim:1000000:4

Also make sure you've configured plenty of pty's (>= 16).  This helped
me enormously; I hope it works out for you!

-----
Jay A. Goldberg 	| Email inside IBM:    KGNAIX(JAG)
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