36 lines
		
	
	
		
			860 B
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			860 B
		
	
	
	
		
			Ruby
		
	
	
	
module Gitlab
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  module Metrics
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    # Module for gathering system/process statistics such as the memory usage.
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    #
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    # This module relies on the /proc filesystem being available. If /proc is
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    # not available the methods of this module will be stubbed.
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    module System
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      if File.exist?('/proc')
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        # Returns the current process' memory usage in bytes.
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        def self.memory_usage
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          mem   = 0
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          match = File.read('/proc/self/status').match(/VmRSS:\s+(\d+)/)
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          if match and match[1]
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            mem = match[1].to_f * 1024
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          end
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          mem
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        end
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        def self.file_descriptor_count
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          Dir.glob('/proc/self/fd/*').length
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        end
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      else
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        def self.memory_usage
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          0.0
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        end
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        def self.file_descriptor_count
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          0
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        end
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      end
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    end
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  end
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end
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