String object

  • Int: the saved integer
  • Embstr: Short string, len <32 bytes
  • Raw: a long string. The value cannot exceed 512MB

A list of objects

  • The number of ziplist elements is less than 512, with len<64 bytes per element
  • Linkedlist other

The hash object

  • The number of ziplist elements is less than 512, with len<64 bytes per element
  • Hashtable other

A collection of objects

  • Intsets are ints with less than 512 elements
  • Hashtable other

Ordered set object

  • The number of Ziplist elements is less than 128, and len<64 bytes per element
  • Skiplist + dict other