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Re: Scaling PostgreSQL at multicore Power8 - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Scaling PostgreSQL at multicore Power8
Date
Msg-id 20150831154850.GZ31526@awork2.anarazel.de
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In response to Re: Scaling PostgreSQL at multicore Power8  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Responses Re: Scaling PostgreSQL at multicore Power8  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
Re: Scaling PostgreSQL at multicore Power8  (YUriy Zhuravlev <u.zhuravlev@postgrespro.ru>)
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On 2015-08-31 17:43:08 +0200, Tomas Vondra wrote:
> Well, I could test the patch on a x86 machine with 4 sockets (64 cores), but
> I wonder whether it makes sense at this point, as the patch really is not
> correct (judging by what Andres says).

Additionally it's, for default pgbench, really mostly a bottlneck after
GetSnapshotData() is fixed. You can make it a problem much earlier if
you have index nested loops over a lot of rows.

- Andres

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