Re: Performance PG 8.0 on dual opteron / 4GB / 3ware

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От Andreas Pflug
Тема Re: Performance PG 8.0 on dual opteron / 4GB / 3ware
Дата
Msg-id 436F92BB.7040807@pse-consulting.de
обсуждение исходный текст
Ответ на Re: Performance PG 8.0 on dual opteron / 4GB / 3ware  ("Dave Page" <dpage@vale-housing.co.uk>)
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Dave Page wrote:

>>
>>
>>Now *I* am confused. What does PgAdmin do more than giving
>>the query to
>>the database?
>
>
> Nothing - it just uses libpq's pqexec function. The speed issue in
> pgAdmin is rendering the results in the grid which can be slow on some
> OS's due to inefficiencies in some grid controls with large data sets.
> That's why we give 2 times - the first is the query runtime on the
> server, the second is data retrieval and rendering (iirc, it's been a
> while).

yrnc.
Query runtime includes data transfer to the client, i.e. until libpq
returns the set, second time is retrieving data from libpq and rendering.

Regards,

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