PostgreSQL hardware and software limits

The following table describes system hardware and software limits on UNIX platforms with PostgreSQL.

Limit

Table Header

Maximum file descriptors
  • S: 1024
  • M: 2048
  • L: 4096

Maximum file size

unlimited

Free swap size

  • S: 4 GB
  • M: 6 GB
  • L: 10 GB

RAM size
  • S: 4 GB
  • M: 8 GB
  • L: 12 GB

Parent Topic

PostgreSQL UNIX kernel parameters