= Description
   Sys::CPU - An interface for various cpu statistics
   
= Synopsis
   require "sys/cpu"
   include Sys

   # Solaris
   puts "Mhz: " + CPU.cpu_freq(0).to_s
   puts "State: " + CPU.state(0)
   puts "Number of cpu's on this system: " + CPU.num_cpu.to_s
   puts "CPU type: " + CPU.type
   puts "FPU type: " + CPU.fpu_type
   puts "CPU model: " + CPU.model
   puts "Load averages: " + CPU.load_avg.join(", ")
   
= Constants
VERSION
   Returns the current version number for this package.
    
= Class Methods
CPU.freq(cpu_num=0)
   Returns an integer indicating the speed (i.e. frequency in Mhz) of
   'cpu_num', or CPU 0 if no number is provided.
    
CPU.type
   Returns a string indicating the type of processor.  This is the
   architecture (e.g. sparcv9), not the exact model (e.g. Ultra-IIe).
   Returns nil if not found.
    
CPU.fpu_type
   Returns a string indicating the type of floating point unit, or nil if
   not found.
    
CPU.load_avg
   Returns an array of three floats indicating the 1, 5 and 15 minute load
   average.
    
CPU.model
   Returns a string indicating the cpu model.  For now, this is the
   architecture type, rather than the exact model.  However, see the
   'Future Plans' section below.
    
CPU.num_cpu
   Returns an integer indicating the number of cpu's on the system.
    
CPU.state(cpu_num)
   Returns a string indicating the cpu state of 'cpu_num'.
    
= Error Classes
CPU::Error < StandardError
   Raised is response to internal function errors, usually relating to an
   invalid cpu number.
    
= Known Bugs
   None known.  Please post bug reports to the SourceForge home page at
   http://www.rubyforge.org/projects/sysutils
    
= Future Plans
   Add more information, such as what prtdiag shows.
   Get the model() method to display more specific information.
    
= Copyright
   (C) 2003-2007 Daniel J. Berger
   All Rights Reserved
    
= Warranty
   This package is provided "as is" and without any express or
   implied warranties, including, without limitation, the implied
   warranties of merchantability and fitness for a particular purpose.
    
= License
   Ruby's
    
= Author
   Daniel J. Berger
   djberg96 at nospam at gmail dot com
   imperator on IRC (Freenode)