LPAR CPU capacity planning Post: 302803733

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Operating Systems AIX LPAR CPU capacity planning Post 302803733 by gsaray101 on Tuesday 7th of May 2013 09:31:23 AM

05-07-2013

Registered User

LPAR CPU capacity planning

Hi Everybody:

I am trying to come up with a formula to calculate the threshold for LPAR cpu utilization in a shared mode. It sounds like I need to calculate the Relative Virtual CPU and then try to calculate the cpu utilzation. Given the following lparstat output:

Code:

System configuration: type=Shared mode=Uncapped smt=4 lcpu=96 mem=393216MB psize=64 ent=16.00 
%user  %sys  %wait  %idle physc %entc  lbusy   app  vcsw phint
----- ----- ------ ------ ----- ----- ------   --- ----- -----
 35.4  15.0   11.1   38.5  9.18  57.4   30.2 36.58 25199  3727 
 36.4  15.6   11.3   36.7  9.41  58.8   31.1 35.56 24301  4129 
 43.2  18.6   13.1   25.1 11.28  70.5   35.0 32.56 30371  5777 
 41.4  17.0   13.2   28.3 10.75  67.2   32.8 33.34 30306  5116 
 35.4  15.0   11.3   38.3  9.21  57.6   29.5 35.85 26479  3758

How would I calculate the CPU threshold for an LPAR in share more?

Last edited by Scott; 05-07-2013 at 10:37 AM.. Reason: Please use code tags

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cpu

CPU(8)							      System Manager's Manual							    CPU(8)

NAME

       cpu - A tool for user and group administration

SYNOPSIS

       cpu [OPTIONS]

DESCRIPTION

       CPU is a tool for user administration, that was initially based on FreeBSD's pw(8). This tool will allow you to administer users and groups
       on several different backends currently including LDAP and flat files. Please see the website http://cpu.sourceforge.net for more  informa-
       tion, or help improve the man page.

OPTIONS

       There are two kinds of options; options for CPU and options for CPU modules.  There are only four options for CPU, they are as follows:

       -C configfile, --config configfile
	      The configuration file to be used by CPU. The options in this file are used for CPU modules.

       -h, --help
	      Display help for CPU. If specified in conjunction with the -m option the help for that particular module is displayed.

       -M method, --method=method
	      This  is	the method of administration. Current options are ldap or passwd (passwd is not yet working). This can be specified in the
	      configuration file.

       -V, --version
	      Display the version of the software.

SEE ALSO

       cpu.conf(5) cpu-ldap(8)

AUTHORS

       Blake Matheny <bmatheny@purdue.edu>

       The current version of this software is always availabe at http://cpu.sourceforge.net

BUGS

       To report a bug or problem, please e-mail:

       cpu-users@lists.sourceforge.net

TODO

       See TODO file that accompanied software. Please e-mail us with any additional suggestions.

								 17 February 2003							    CPU(8)