/usr/share/doc/ruby-eventmachine/examples/old/ex_tick_loop_counter.rb is in ruby-eventmachine 1.0.3-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | require File.dirname(__FILE__) + '/helper'
class TickCounter
attr_reader :start_time, :count
def initialize
reset
@tick_loop = EM.tick_loop(method(:tick))
end
def reset
@count = 0
@start_time = EM.current_time
end
def tick
@count += 1
end
def rate
@count / (EM.current_time - @start_time)
end
end
period = 5
EM.run do
counter = TickCounter.new
EM.add_periodic_timer(period) do
puts "Ticks per second: #{counter.rate} (mean of last #{period}s)"
counter.reset
end
end
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