03-11-2014
That I understand..
OK on HP-UX when I had this sort of issues, I used to dedicate a CPU to that application or user ... he would find himself as if on a single cpu box... only it will run at the speed of the cpu...
kernel params, to allow big - long processes to use all the cpu, I used to change the timeslice, but this is very tricky : You fall on badly written code, and you have lost control of your server... So although this can accelerate your application it has some terrible side effects, because the parameter affects all the system... I used to fine tune a kernel specificly for batches, and compile a kernel for that purpose, then its just a question of swaping kernel and reboot...
You have to accept the idea that 2 CPU 1GHz cannot do 1CPU@2GHz, and so will have to tune what you can, to reduce I/O , disk access etc.. and to remember the better is the ennemy of Good...
You are left analysing why you have performance issues and try to find workarounds, and I tell you there are
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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)