Process

Hi,

I have a Postgres server that has more than 500MB ( shared_buffers =
64000) and looking at TOP command, I couldn't understand why appears
some process with 536m and other with 23m.
What's the difference between?

Wouldn't be all process with 536m, including client connections, but not
allocating all this memory, just server process?

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4039 postgres 16 0 537m 13m 536m S 0.0 0.7 0:01.53 postmaster
4040 postgres 16 0 25572 3356 23m S 0.0 0.2 0:00.14 postmaster
4042 postgres 15 0 537m 400m 536m S 0.0 20.0 0:01.63 postmaster
4043 postgres 16 0 25568 3424 23m S 0.0 0.2 0:00.01 postmaster
4044 postgres 16 0 26572 4396 23m S 0.0 0.2 0:01.85 postmaster
4045 postgres 15 0 25848 3584 23m S 0.0 0.2 0:00.96 postmaster

Thanks in advance for you help.