Module: Albacore::Facts

Defined in:
lib/albacore/facts.rb

Class Method Summary collapse

Class Method Details

.processor_count ⇒ Object 



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# File 'lib/albacore/facts.rb', line 5

def self.processor_count
  case RbConfig::CONFIG['host_os']
  when /darwin9/
    `hwprefs cpu_count`.to_i
  when /darwin/
    ((`which hwprefs` != '') ? `hwprefs thread_count` : `sysctl -n hw.ncpu`).to_i
  when /linux/
    `cat /proc/cpuinfo | grep processor | wc -l`.to_i
  when /freebsd/
    `sysctl -n hw.ncpu`.to_i
  when /mswin|mingw/
    require 'win32ole'
    # http://msdn.microsoft.com/en-us/library/windows/desktop/aa394373%28v=vs.85%29.aspx
    wmi = WIN32OLE.connect("winmgmts://")
    cpu = wmi.ExecQuery("select NumberOfLogicalProcessors from Win32_Processor")
    cpu.to_enum.first.NumberOfLogicalProcessors
  end
end