| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Zheng Li <zhengli10(at)gmail(dot)com>, Jim Nasby <nasbyj(at)amazon(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Reducing power consumption on idle servers |
| Date: | 2022-11-13 21:28:14 |
| Message-ID: | CA+hUKG+HKzCTa=Wotud0yLq52qj3D9qFMQrPM5bM-WVkNNioPw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Nov 14, 2022 at 5:52 AM Simon Riggs
<simon(dot)riggs(at)enterprisedb(dot)com> wrote:
> The attached patch is a reduced version of the original. It covers only:
> * deprecation of the promote_trigger_file - there are no tests that
> use that, hence why there is no test coverage for the patch
> * changing the sleep time of the startup process to 60s
> * docs and comments
LPGTM. If we also fix the bogus SIGALRM wakeups[1], then finally a
completely idle recovery process looks like:
kevent(8,0x0,0,{ },1,{ 60.000000000 }) = 0 (0x0)
kevent(8,0x0,0,{ },1,{ 60.000000000 }) = 0 (0x0)
kevent(8,0x0,0,{ },1,{ 60.000000000 }) = 0 (0x0)
Presumably it would have no timeout at all in the next release.
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