Module: MemoryProfiler

Defined in:
lib/evoc/memory_profiler.rb

Constant Summary collapse

@@thread = 
nil

Class Method Summary collapse

Class Method Details

.start(tag, n) ⇒ Object

Parameters:

  • tag (string) —

    tag to add to dumped files



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# File 'lib/evoc/memory_profiler.rb', line 21

def self.start(tag,n)
  dump_dir = 'mem_dumps'
  index = "#{dump_dir}/#{tag}-index.txt"
  ObjectSpace.trace_object_allocations_start
  if !Dir.exists?(dump_dir)
    Dir.mkdir dump_dir
  end
  File.open(index,"w")
  @@thread = tick_every(n) do
    GC.start
    i = Time.now.strftime('%Y-%m-%dT%H:%M:%S')
    dump = "#{tag}-#{i}.dump"
    dump_path = "#{dump_dir}/#{dump}"
    ObjectSpace.dump_all(output: open(dump_path, "w"))
    File.open(index,'a') {|index| index.puts "#{dump_path},#{i}" }
  end
end

.stop ⇒ Object 



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# File 'lib/evoc/memory_profiler.rb', line 39

def self.stop
  @@thread.kill
end