thedarkone

# using accessors:

attr_volatile :table, :size_control

def check_for_resize
  while (current_table = table) && MAX_CAP > (table_size = current_table.size) && RESIZING != (size_ctrl = size_control) && size_ctrl < @counter.sum
    try_in_resize_lock(current_table, size_ctrl) do
      self.table = rebuild(current_table)
      (table_size << 1) - (table_size >> 1) # 75% load factor
    end

thedarkone

require 'thread'

bignum = (2 ** (0.size * 8))
start  = 0

h = {:a => start}

h[:a] += bignum # get into the Bignum territory

iterations   = 100_000

thedarkone

require 'thread'

bignum = (2 ** (0.size * 8))
start  = 0

class H < Hash
  def [](key)
    super if key.kind_of?(Symbol)
  end
  

thedarkone

An exception occurred running at_exit handlers
    no block given (LocalJumpError)

Backtrace:

ERROR: the VM is exiting improperly running at_exit handlers
intended operation: :exception
associated value: nil
destination scope: unknown
An exception occurred

thedarkone

unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'
    gem 'rails', github: 'rails/rails'
    gem 'arel', github: 'rails/arel'
    gem 'sqlite3'
  GEMFILE

  system 'bundle'
end

thedarkone

def recur(n)
  if n == 0
    bench
  else
    recur(n-1)
  end
end


def bench