Thom Brown <thombrown@gmail.com> writes:
> My mistake. I've never seen that before. Running it on mine returns the
> following:
> ------ Shared Memory Segments --------
> key shmid owner perms bytes nattch status
> 0x0052e2c1 491520 postgres 600 235511808 4
Okay, so your actual shmem size is 235MB, of which 196 is shared_buffers
and 8 is wal_buffers, and the rest is related to max_connections and
various third-order parameters. I'm not sure how precise the values
given in the docs are, but last I checked they weren't hugely wrong.
regards, tom lane