Class: Fiddlesticks::Core

Inherits:
Object
  • Object
show all
Includes:
Memory, OS
Defined in:
lib/fiddlesticks/core.rb

Instance Method Summary collapse

Methods included from Memory

#calculate_memory, #get_memory, #total_memory

Methods included from OS

linux?, mac?, unix?, windows?

Constructor Details

#initialize(total_memory: :gb, used_memory: :mb, gc_enabled: true) ⇒ Core

Returns a new instance of Core.



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# File 'lib/fiddlesticks/core.rb', line 14

def initialize(total_memory: :gb, used_memory: :mb, gc_enabled: true)
  @config = {
    total_memory: total_memory,
    used_memory: used_memory,
    gc_enabled: gc_enabled
  }
  @valid_keys = @config.keys
end

Instance Method Details

#configure(opt = {}) ⇒ Object 



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# File 'lib/fiddlesticks/core.rb', line 23

def configure(opt = {})
  #@params opt [Hash]
  #@description Accepts a [Hash] with the keys:
  #   total_memory [Symbol] format type ':kb', ':mb', 'gb' standard: ':gb',
  #   used_memory [Symbol] format type ':kb', ':mb', 'gb' standard: ':mb',
  #   gc_enabled [Boolean] format type 'true', 'false' standard: 'true'
  opt.each { |k, v| @config[k.to_sym] = v if @valid_keys.include? k.to_sym }
end

#measure(&block) ⇒ Object 



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# File 'lib/fiddlesticks/core.rb', line 32

def measure(&block)
  total_memory_type = @config.fetch(:total_memory)
  used_memory_type  = @config.fetch(:used_memory)
  gc_enabled   = @config.fetch(:gc_enabled)

  gc_enabled ? GC.start : GC.disable
  memory_before = get_memory(used_memory_type)
  gc_stat_before  = GC.stat

  time = Benchmark.realtime do
    yield
  end

  if gc_enabled
    GC.start(full_mark: true, immediate_sweep: true, immediate_mark: false)
  end

  gc_stat_after = GC.stat
  memory_after  = get_memory(used_memory_type)
  memory_total = total_memory(total_memory_type)
  memory_used = calculate_memory(memory_before, memory_after, used_memory_type)

  gc = gc_enabled ? "enabled" : "disabled"

  gc_count = gc_stat_after[:count] - gc_stat_before[:count]


  header = ["Ruby Version", "GC", "GC Sweeps", "Total Memory", "Memory Used", "Time"]
  data   = [ RUBY_VERSION, gc, gc_count, memory_total, memory_used, "#{time.round(2)} Seconds"]

  Console.display_table([header, data], width: 100, col_sep: "|", row_sep: "-")
end