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In my RAID performance article I've given a lot of performance numbers, but it is indeed a good question on how to exactly measure disk performance. To do this you need 2 tools. One that does the actual benchmark and one that measure the different system parameters so you can know the impact of the benchmark. For the benchmark tool itself I usually use 3 tools. The first one is good old dd.
How to test and monitor disk performance
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LINUX
dialog - display dialog boxes from shell scripts. 'dialog' is a utility for building console-based 'front ends' in UNIX like operating systems. In this brief tutorial I am mentioning the usage of few important basic controls available with this 'dialog' utility and later I have created a very simple front end application in UNIX bash scripting using dialog. To install 'dialog' on your ubuntu: $ apt-get install dialog Box options available with dialog: (Do a 'man' of dialog to know the usage of each control box)
Linux dialog utility short tutorial
For full documentations, please see http://www.centos.org/docs/5/html/5.2/Installation_Guide/s1-kickstart2-howuse.html Tuning the %packages section When using %packages to define the set of packages that should be installed there are a number of more or less documented options that can be set: --resolvedeps
