| From: | Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Ian Lawrence Barwick <barwick(at)gmail(dot)com>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(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>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Reducing power consumption on idle servers |
| Date: | 2022-11-29 10:18:24 |
| Message-ID: | CANbhV-HHGdLYQyGdd3Y97Ekrfd_kGBOjyV1h3khVszbh8HAbvQ@mail.gmail.com |
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On Mon, 28 Nov 2022 at 23:16, Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>
> I found some more comments and some documentation to word-smith very
> lightly, and pushed.
Thanks
> The comments were stray references to the
> trigger file. It's
> a little confusing because the remaining mechanism also uses a file,
> but it uses a signal first so seems better to refer to promotion
> requests rather than files.
..and again
> /me wonders how many idle servers there are in the world
My estimate is there are 100 million servers in use worldwide, with
only about 1% of them on a continuously busy duty cycle and most of
them not in the cloud.
If we guess that we save 10W when idle, then that saves some proportion of a GW.
It's not a huge contribution to the effort, but if by doing this we
inspire others to do the same, we may yet make a difference.
--
Simon Riggs http://www.EnterpriseDB.com/
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