Class: GitLab::Monitor::ProcessStats

Inherits:
Object
  • Object
show all
Defined in:
lib/gitlab_monitor/process.rb

Overview

A helper class to stats from /proc/<pid>/stat

See: man 5 proc

It takes a pid

Instance Method Summary collapse

Constructor Details

#initialize(pid) ⇒ ProcessStats

Returns a new instance of ProcessStats.



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# File 'lib/gitlab_monitor/process.rb', line 16

def initialize(pid)
  @pid = pid
  @user_hertz = retrieve_user_hertz
  @stats = populate_info
end

Instance Method Details

#cpu_time ⇒ Object 



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# File 'lib/gitlab_monitor/process.rb', line 26

def cpu_time
  (@stats[14].to_i + @stats[15].to_i) / @user_hertz
end

#rss ⇒ Object 



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# File 'lib/gitlab_monitor/process.rb', line 39

def rss
  # Resident Set Size: number of pages the process has in real memory.
  @stats[24].to_i * 4096
end

#start_time ⇒ Object 



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# File 'lib/gitlab_monitor/process.rb', line 30

def start_time
  @stats[22].to_i / @user_hertz
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gitlab_monitor/process.rb', line 22

def valid?
  !@stats.nil?
end

#vsize ⇒ Object 



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# File 'lib/gitlab_monitor/process.rb', line 34

def vsize
  # Virtual memory size in bytes.
  @stats[23].to_i
end