Re: Let's make PostgreSQL multi-threaded

From: Andres Freund <andres(at)anarazel(dot)de>
To: Jose Luis Tallon <jltallon(at)adv-solutions(dot)net>
Cc: "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Let's make PostgreSQL multi-threaded
Date: 2023-06-08 15:57:15
Message-ID: 20230608155715.xhcb2bm246wlxlrj@awork3.anarazel.de
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On 2023-06-08 14:01:16 +0200, Jose Luis Tallon wrote:
> * For "heavyweight" queries, the scalability of "almost independent"
> processes w.r.t. NUMA is just _impossible to achieve_ (locality of
> reference!) with a pure threaded system. When CPU+mem-bound
> (bandwidth-wise), threads add nothing IMO.

I don't think this is true in any sort of way.

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