Re: psql is slow and it does not take much resources

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От Jim C. Nasby
Тема Re: psql is slow and it does not take much resources
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Msg-id 20060504203102.GC97354@pervasive.com
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Ответ на Re: psql is slow and it does not take much resources  ("Javier de la Torre" <jatorre@gmail.com>)
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On Wed, May 03, 2006 at 04:43:15PM +0200, Javier de la Torre wrote:
> Yes,
>
> Thanks. I am doing this now...
>
> Is definetly faster, but I will also discover now if there is a limit
> in a transaction side... I am going to try to insert into one single
> transaction 60 million records in a table.
>
> In any case I still don't understand how why PostgreSQL was not taking
> resources before without the transaction. If it has to create a
> transaction per insert I understand it will have to do more things,
> but why is not taking all resources from the machine? I mean, why is
> it only taking 3% of them.

Because a server has more than just CPU as a resource. In this case you
were undoubtedly limited by the drives that pg_xlog is on.
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

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