Re: a tiny question

From: "Luis Alberto Amigo Navarro" <lamigo(at)atc(dot)unican(dot)es>
To: "Neil Conway" <neilc(at)samurai(dot)com>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: a tiny question
Date: 2002-11-05 16:06:13
Message-ID: 00ba01c284e5$437e19b0$cab990c1@atc.unican.es
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a guess it's said inter-locking, I mean data accessed exclusively.
I apologize for my english

----- Original Message -----
From: "Neil Conway" <neilc(at)samurai(dot)com>
To: "Luis Alberto Amigo Navarro" <lamigo(at)atc(dot)unican(dot)es>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Sent: Tuesday, November 05, 2002 4:47 PM
Subject: Re: [HACKERS] a tiny question

> "Luis Alberto Amigo Navarro" <lamigo(at)atc(dot)unican(dot)es> writes:
> > When we improve seq scans, systems scales well up to 8 cpus.When we
improve index
> > scan, query performance increase but system stops scaling at about 4
proccessors,
> > profiling shows that it is due to increased memory contention
>
> What do you mean by "memory contention"?
>
> Cheers,
>
> Neil
>
> --
> Neil Conway <neilc(at)samurai(dot)com> || PGP Key ID: DB3C29FC
>
>
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