| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Thom Brown <thombrown(at)gmail(dot)com> |
| Cc: | pgsql-docs(at)postgresql(dot)org |
| Subject: | Re: Shared memory usage calculations |
| Date: | 2009-10-10 20:15:22 |
| Message-ID: | 20737.1255205722@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-docs |
Thom Brown <thombrown(at)gmail(dot)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
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Turner, Ian | 2009-10-23 19:43:50 | [PATCH] clarify username mapping in Kerberos and GSSAPI |
| Previous Message | Thom Brown | 2009-10-10 18:45:45 | Re: Shared memory usage calculations |