Class: Mool::Cpu

Inherits:
Base
  • Object
show all
Defined in:
lib/mool/cpu.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#attrs

Constructor Details

#initialize(process_number, opt = {}) ⇒ Cpu

“all”, “1”, “2”


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# File 'lib/mool/cpu.rb', line 20

def initialize(process_number, opt={})
  result = Mool::Cpu.processors

  unless result.include?(process_number.to_s)
    raise "Cpu name incorrect!. Posible values: #{result.join(', ')}"
  end

  result = opt.empty? ? Mool::Cpu.cpuinfo[process_number.to_s] : opt
  @cpu_name = "cpu_#{process_number}"
  @id         = process_number
  @model_name = result['model_name']
  @cores      = result['cpu_cores'].to_i
  @usr        = result['%usr'].to_f
  @nice       = result['%nice'].to_f
  @sys        = result['%sys'].to_f # This is kernel %
  @iowait     = result['%iowait'].to_f
  @irq        = result['%irq'].to_f
  @soft       = result['%soft'].to_f
  @steal      = result['%steal'].to_f
  @guest      = result['%guest'].to_f
  @gnice      = result['%gnice'].to_f
  @idle       = result['%idle'].to_f
  @total      = [@usr,
                 @nice,
                 @sys,
                 @iowait,
                 @irq,
                 @soft,
                 @steal,
                 @guest].sum
end

Instance Attribute Details

#cores ⇒ Object

Returns the value of attribute cores.



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# File 'lib/mool/cpu.rb', line 3

def cores
  @cores
end

#cpu_name ⇒ Object

Returns the value of attribute cpu_name.



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# File 'lib/mool/cpu.rb', line 3

def cpu_name
  @cpu_name
end

#gnice ⇒ Object

Returns the value of attribute gnice.



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# File 'lib/mool/cpu.rb', line 3

def gnice
  @gnice
end

#guest ⇒ Object

Returns the value of attribute guest.



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# File 'lib/mool/cpu.rb', line 3

def guest
  @guest
end

#id ⇒ Object

Returns the value of attribute id.



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# File 'lib/mool/cpu.rb', line 3

def id
  @id
end

#idle ⇒ Object

Returns the value of attribute idle.



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# File 'lib/mool/cpu.rb', line 3

def idle
  @idle
end

#iowait ⇒ Object

Returns the value of attribute iowait.



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# File 'lib/mool/cpu.rb', line 3

def iowait
  @iowait
end

#irq ⇒ Object

Returns the value of attribute irq.



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# File 'lib/mool/cpu.rb', line 3

def irq
  @irq
end

#model_name ⇒ Object

Returns the value of attribute model_name.



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# File 'lib/mool/cpu.rb', line 3

def model_name
  @model_name
end

#nice ⇒ Object

Returns the value of attribute nice.



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# File 'lib/mool/cpu.rb', line 3

def nice
  @nice
end

#soft ⇒ Object

Returns the value of attribute soft.



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# File 'lib/mool/cpu.rb', line 3

def soft
  @soft
end

#steal ⇒ Object

Returns the value of attribute steal.



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# File 'lib/mool/cpu.rb', line 3

def steal
  @steal
end

#sys ⇒ Object

Returns the value of attribute sys.



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# File 'lib/mool/cpu.rb', line 3

def sys
  @sys
end

#total ⇒ Object

Returns the value of attribute total.



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# File 'lib/mool/cpu.rb', line 3

def total
  @total
end

#usr ⇒ Object

Returns the value of attribute usr.



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# File 'lib/mool/cpu.rb', line 3

def usr
  @usr
end

Class Method Details

.all ⇒ Object 



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# File 'lib/mool/cpu.rb', line 82

def self.all
  Mool::Cpu.cpuinfo.map { |key, value| Mool::Cpu.new(key, value) }
end

.cpuinfo ⇒ Object 



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# File 'lib/mool/cpu.rb', line 52

def self.cpuinfo
  cpu_info = {}

  mpstat = Mool::Command.mpstat.split("\n\n")[2].split("\n").map do |i|
    i.gsub(/^\S+:/, '').strip.split(/\s+/)
  end

  mpstat_vars = mpstat.shift
  mpstat_vars.shift

  mpstat.each do |data|
    res = {}
    core_name = data.shift
    data.each_with_index { |d, i| res.merge!(mpstat_vars[i] => d) }
    cpu_info.merge!(core_name => res)
  end

  Mool::Command.cpuinfo.gsub(/([^\n])\n([^\n])/,
                             '\1 \2').scan(/processor\t*: (\d+).*model name\t*: (.*) stepping.*cpu cores\t*: (\d+)/).each do |v|
    cpu_info[v[0]]['model_name'] = v[1]
    cpu_info[v[0]]['cpu_cores'] = v[2]
  end

  cpu_info
end

.processors ⇒ Object 



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# File 'lib/mool/cpu.rb', line 78

def self.processors
  Mool::Command.cpuinfo.scan(/processor\t*: (\d+)/).flatten + ['all']
end