anchor.diff:  #   See cache_replacement_policy for details.
   #Default:
   # memory_replacement_policy lru
  -memory_replacement_policy <%= memory_replacement_policy %>
  +memory_replacement_policy <%= @memory_replacement_policy %>
   
   # DISK CACHE OPTIONS
   # -----------------------------------------------------------------------------
  
positive.code: #   See replacement_policy below for a discussion of this policy.
  #Default:
  # maximum_object_size 4096 KB
  maximum_object_size <%= maximum_object_size %>
  
  #  TAG: cache_swap_low  (percent, 0-100)
  #  TAG: cache_swap_high (percent, 0-100)
  
negative.code: #   objects.
  #Default:
  # cache_mem 256 MB
  cache_mem <%= @cache_mem %>
  
  #  TAG: maximum_object_size_in_memory   (bytes)
  #   Objects greater than this size will not be attempted to kept in
  