Class: SwissAdmin::Hardware

Inherits:
Object
  • Object
show all
Defined in:
lib/swiss_admin/hardware/cpus.rb,
lib/swiss_admin/hardware/memory.rb

Class Method Summary collapse

Class Method Details

.cpus ⇒ Object 



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# File 'lib/swiss_admin/hardware/cpus.rb', line 3

def self.cpus
  cpus = if File.readable?("/proc/cpuinfo")
           IO.read("/proc/cpuinfo").scan(/^processor/).size
         else
           "unknown"
         end
end

.memory ⇒ Object

Mem — Displays the current state of physical RAM in the system, 

including a full breakdown of total, used, free, shared, buffered, 
and cached memory utilization in bytes.

Swap — Displays the total, used, and free amounts of swap space, in bytes. MemTotal — Total amount of physical RAM, in kilobytes. MemFree — The amount of physical RAM, in kilobytes, left unused by the system. MemShared — Unused with 2.4 and higher kernels 

but left in for compatibility with earlier kernel versions.

Buffers — The amount of physical RAM, in kilobytes, used for file buffers. Cached — The amount of physical RAM, in kilobytes, used as cache memory. Active — The total amount of buffer or page cache memory, in kilobytes, that is in active use. Inact_dirty — The total amount of buffer or cache pages, in kilobytes, that might be freeable. Inact_clean — The total amount of buffer or cache pages in kilobytes Inact_target — The net amount of allocations per second, in kilobytes, averaged over one minute. HighTotal and HighFree — The total and free amount of memory, 

respectively, that is not directly mapped into kernel space. 
The HighTotal value can vary based on the type of kernel used.

LowTotal and LowFree — The total and free amount of memory, respectively, 

that is directly mapped into kernel space. 
The LowTotal value can vary based on the type of kernel used.

SwapTotal — The total amount of swap available, in kilobytes. SwapFree — The total amount of swap free, in kilobytes.



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# File 'lib/swiss_admin/hardware/memory.rb', line 27

def self.memory
  memory = if File.readable?("/proc/meminfo")
             IO.read("/proc/meminfo").scan(/([a-zA-Z]+):\W+(\d+)/)
           else
             "unknown"
           end
  memory.inject({}) { |a,d| a[d[0]] = d[1]; a }
end