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help / color / mirror / Atom feedFrom: Pól Ua Laoínecháin <[email protected]>
Cc: pgsql-novice <[email protected]>
Subject: Re: Using PGTune - is it a good source for system configuration?
Date: Wed, 1 Sep 2021 19:16:18 +0100
Message-ID: <CAF4RT5QJ0gAVqqiNJ2-2WMcGVsWhihBwif+zttw08pT-W0jv1w@mail.gmail.com> (raw)
In-Reply-To: <CAKFQuwaiKJXCsf+h5yBmEcrCoadFduxfkgO884cgbspvbi=z7g@mail.gmail.com>
References: <CAF4RT5RfAuwnAycn9pU+Hxqv1aaKiAnQKv0V_BsqjSX5TAymtw@mail.gmail.com>
<CAKFQuwaiKJXCsf+h5yBmEcrCoadFduxfkgO884cgbspvbi=z7g@mail.gmail.com>
Hi, and thanks for replying.
> Not according to its "about" page...
Yeah, sure, it's not a silver bullet, but the thrust of my question
was: do the community experts consider it reliable enough as a first
approximation?
Your remarks about "better than the generic defaults" reassures me
that this is the case.
This is just my laptop - but I've taken PGTune's recommendations
before for a data loading and it was a real help...
One other question that I forgot to include in my original!
I have a two CPU core (that's why I put 2 for the number of CPUs) but
my processor supports hyperthreading (Intel Core i5, 7th Gen), so
should I really put 4 as the no.
Changing this from 2 to 4 changes the
work_mem from 41943kB to 20971kB and the worker settings from
max_worker_processes = 2
max_parallel_workers_per_gather = 1
max_parallel_workers = 2
max_parallel_maintenance_workers = 1
to
max_worker_processes = 4
max_parallel_workers_per_gather = 2
max_parallel_workers = 4
max_parallel_maintenance_workers = 2
So, which would be the correct Number of CPUs setting given my processor?
TIA and rgs,
Pól...
> David J.
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