Daniel Westermann <daniel.westermann@dbi-services.com> writes:
> ls -la /dev/shm
> total 4
> drwxrwxrwt 2 root root 60 Feb 17 11:19 .
> drwxr-xr-x 18 root root 3100 Feb 17 09:36 ..
> -rw------- 1 postgres postgres 2316 Feb 17 11:19 PostgreSQL.1804289383
> Question: Why is this file only 2316 bytes?
It holds a DSM control header, nothing more. If you were actually doing
anything with dynamic shared memory, you'd see more such files.
regards, tom lane