A.P. Lawrence

uw7 unixware 7 kernel memory tuning rtpm

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From - Tue Sep 25 06:56:07 2001
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From: robertl@localhost.localdomain (Robert Lipe)
Newsgroups: comp.unix.sco.misc
Subject: Re: Unixware 7.1 memory References: <9on8qc$46s$1@slb7.atl.mindspring.net> <3BAF9EFA.CC4EA056@inreach.com>
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On Mon, 24 Sep 2001 21:01:24 GMT, Pat Welch <patubb@inreach.com> wrote:

>But, UW7 unfortunately does very little 'auto' tuning on it's own,
>unlike OS5.

Well, that's true in a left-handed way.

Systems of the SVR4 lineage don't *need* as much kernel tuning.  They're
highly dynamic and can efficiently shift resources - such as memory - around
on demand instead of requiring the system administrator or some program
to figure out that "ooooh, you need more hash queues; let me turn up that
number, build you a new kernel, and remind you to reboot".   You don't have
to decide at kernel configure/build (or boot) times that "I want 18.73 
Megabytes dedicated to disk buffers even though I know that memory can 
never be used by user applications".    The system doles out pages where
they're needed and doesn't require the admin to turn knobs.

My Unix and Linux Troubleshooting E-Book will show you how to
solve tough system problems!

More to answer the original question for UW7/OU8, check out 'rtpm'.  It
shows you where resources (cpus and memory) are being spent in a realtime-ish
format.

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