| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, thomas(dot)munro(at)gmail(dot)com, tgl(at)sss(dot)pgh(dot)pa(dot)us, john(dot)naylor(at)enterprisedb(dot)com, noriyoshi(dot)shinoda(at)hpe(dot)com, jchampion(at)timescale(dot)com, sawada(dot)mshk(at)gmail(dot)com, masao(dot)fujii(at)oss(dot)nttdata(dot)com, pgsql-hackers(at)postgresql(dot)org, rjuju123(at)gmail(dot)com, Nathan Bossart <nathandbossart(at)gmail(dot)com> |
| Subject: | Re: Improve logging when using Huge Pages |
| Date: | 2023-02-09 09:40:13 |
| Message-ID: | 20230209094013.67varf63bihops33@alvherre.pgsql |
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| Lists: | pgsql-hackers |
On 2023-Feb-08, Justin Pryzby wrote:
> I don't think it makes sense to run postgres -C huge_pages_active,
> however, so I see no issue that that would always returns "false".
Hmm, I would initialize it to return "unknown" rather than "off" — and
make sure it turns "off" at the appropriate time. Otherwise you're just
moving the confusion elsewhere.
> If need be, maybe the documentation could say "indicates whether huge
> pages are active for the running server".
Dunno, that seems way too subtle.
> Does anybody else want to vote for a function rather than a
> RUNTIME_COMPUTED GUC ?
I don't think I'd like to have SELECT show_block_size() et al, so I'd
rather not go that way.
--
Álvaro Herrera PostgreSQL Developer — https://www.EnterpriseDB.com/
"¿Qué importan los años? Lo que realmente importa es comprobar que
a fin de cuentas la mejor edad de la vida es estar vivo" (Mafalda)
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