uw7 unixware 7 kernel memory tuning rtpm

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From - Wed Sep 26 06:53:47 2001
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From: mschalit@pacbell.net (Matt Schalit)
Newsgroups: comp.unix.sco.misc
Subject: Re: Unixware 7.1 memory
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Date: Wed, 26 Sep 2001 05:39:40 GMT
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On Mon, 24 Sep 2001 08:19:39 -0400, "David Jetter" <djetter@springmail.com> wrote:

>I have been asked about a Unixware 7.1 system that the operator complains
>that it runs slow quite often.  She wants to upgrade the memory since memory
>is cheap right now.  With UW 7.1, what should we check to confirm the memory
>usage or system performance?

  There's a few paths.  People have mentioned them,
including rtpm, sar, and common sense.  Look for any
yellow and red values in rtpm, other than %run,
which should not be red at 0%.

  Often it takes quite a bit of common sense, and 
I'm smiling as I type that.

  Take for example the "eager" user who often runs 
programs that hog the cpu, like gcc, or there could 
be a runaway process.

  It doesn't take a degree to install as much ram
as you can afford, as many processors, and the fastest 
scsi disks.  Disks, as you may know, take milliseconds 
to access, as versus nanoseconds to access ram.  There
are some nice processors out there, too, these days.

>After memory is installed, should the Unixware be tweaked
>for the additional memory?

The simple answer is, "No, Sir."  Your more likely to hit 
other limits that you might change for peace of mind and
whatnot, like NPROC, the maximum number of processes.

Check out the Uw7 FAQ question, "What are the important 
tunable parameters I might adjust like MAXUP?"

  http://www.zenez.com/tmp/scouw7faq/cache/183.html

Regards,
Matt



>Thanks,
>David Jetter

Hey you take care now,
Matt

Macworld Digital Music & Video Superguide $12.95

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