gem5 dump stat

gem5_dump_stat.rb

#!/usr/bin/env ruby

def StatDump(seq_num)
  Dir.glob('/proc/*').each do |process|
    next if not File.directory?(process)

    pid = process.split('/')[2]
    next if not pid =~ /\d+/

    is_gem5 = false
    is_user = false
    name = "N/A"

    File.readlines(process + '/status').each do |line|
      lines = line.split()
      case lines[0]
      when 'Name:'
        is_gem5 = lines[1].include?('gem5.')
        name = lines[1]
      when 'Uid:'
        is_user = lines[1].to_i == Process.uid
      end 
    end 

    if is_gem5 and is_user
      signal = 'SIGUSR1'
      puts "##{seq_num} send #{signal} to #{name} with pid #{pid}"
      Process.kill(signal, pid.to_i)
    end 
  end 
end

seq_num = 0 
loop do
  seq_num += 1
  StatDump(seq_num)
  sleep 10
end