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Operating Systems AIX topas - computational memory 95% : Any Impact? Post 302492700 by bakunin on Tuesday 1st of February 2011 07:41:04 AM
Old 02-01-2011
AIX (and most other Unix-systems, for that matter) try to put as much of the available memory to good use as is possible. That means: if a system doesn't need memory for programs it will increase the size of all sorts of buffers, caches, etc. to improve performance. Once more memory is demanded by running programs these buffers will decrease in size automatically.

So in short: the high memory consumption is absolutely normal and is to be expected. The only possible reason for concern is when the output of "vmstat" shows non-zero values in the "pi" and "po" (page in / page out) columns,

Search this forum for "performance" and "vmstat" to find lots of threads where this issue (and related issues) is discussed in much more detail.

I hope this helps.

bakunin
 

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substrate(6x)							XScreenSaver manual						     substrate(6x)

NAME
substrate - Grow crystal-like lines on a computational substrate SYNOPSIS
substrate [-display host:display.screen] [-foreground color] [-background color] [-wireframe] [-max-cycles cyclecount] [-growth-delay delayms] [-initial-cracks numinitial] [-max-cracks nummax] [-sand-grains numgrains] [-circle-percent circlepercent] [-fps] DESCRIPTION
Lines like crystals grow on a computational substrate. A simple perpendicular growth rule creates intricate city-like structures. Option- ally, cracks may also be circular, producing a cityscape more familiar to places for which city planning is a distant, theoretical concern. Ported from the code by j.tarbell at http://complexification.net OPTIONS
substrate accepts the following options: -wireframe (Default: False) Don't draw sand-painting colored effects, only make a wireframe. -max-cycles cyclecount (Default: 10000) Maximum number of growth cycles before restarting. The higher this is, the more complex the art. -growth-delay delayms (Default: 18000) Delay in ms between growth cycles. More delay, slower (but smoother and less CPU intensive) art. -initial-cracks numinitial (Default: 3) Initial number of cracks in the substrate -max-cracks nummax (Default: 100) Maximum number of cracks in the substrate at a single time -sand-grains numgrains (Default: 64) Number of sand grains dropped during coloring. More grains cause a denser colour but use more cpu power. -circle-percent circlepercent (Default: 0) The percentage of the cracks will be circular. -fps Display the current frame rate and CPU load. ENVIRONMENT
DISPLAY to get the default host and display number. XENVIRONMENT to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property. SEE ALSO
X(1), xscreensaver(1) COPYRIGHT
Copyright (C) 2003 by J. Tarbell (complex@complexification.net, http://www.complexification.net). Ported to XScreensaver 2004 by Mike Kershaw (dragorn@kismetwireless.net) AUTHOR
J. Tarbell <complex@complexification.net>, Jun-03 Mike Kershaw <dragorn@kismetwireless.net>, Oct-04 X Version 11 5.10 (07-Sep-2009) substrate(6x)
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