define: DUK_USE_STRTAB_SHRINK_LIMIT
introduced: 2.1.0
default: 6  # 6/16 = 0.375
tags:
  - performance
  - lowmemory
description: >
  Shrink top level strtable allocation when load factor reaches this value.
  Expressed as a .4 fixed point; the load factor is computed as
  floor((count / size) * 16.0), e.g. 8 means a load factor of 0.5.