Richard,

I recommend you obtain the AIX Performance Tuning Redbook, SG 244989.

Basically, AIX does memory mapped disk I/O.  When a page of a disk file is
accessed, AIX maps a page of memory to it.  That memory page stays mapped
until it is needed somewhere else.  "Free" doesn't qualify as "somewhere
else" unless the amount of free memory drops below the threshold that you
can set with vmtune.

So eventually, all "free" memory get puts to some use.

Tab Trepagnier
TSM Administrator
Laitram Corporation











"Dearman, Richard" <rdearm1 AT UIC DOT EDU>@VM.MARIST.EDU> on 04/06/2001 
10:17:16
AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

Sent by:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  AIX Gurus.. .Help Needed..


I use the "top"utility to monitor my server adsm server load.  I noticed
that the Real memory statement is showing 812M files is being used.  What
does the files statement mean?  it seems whatever files means is taking up
all of my memory.

Load averages:  0.10,  0.04,  0.04 adsmsrv1            Fri Apr  6 10:15:50
2001
Cpu states:  0.7% user  3.5% system  7.8% wait 88.0% idle   For
non-commercial
Logged on:   1 users   1 active 1 remote 00:10 sleep time         use only
!!!
Real memory:  211.6M procs  812.0M files    0.5M free 1024.0M total
Virtual memory:             137.6M used  3574.4M free 3712.0M total



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