Re: [HACKERS] Parallel Select query performance and shared buffers

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От Andres Freund
Тема Re: [HACKERS] Parallel Select query performance and shared buffers
Дата
Msg-id 20131204180411.GE7383@awork2.anarazel.de
обсуждение исходный текст
Ответ на Re: [HACKERS] Parallel Select query performance and shared buffers  (Claudio Freire <klaussfreire@gmail.com>)
Ответы Re: [HACKERS] Parallel Select query performance and shared buffers  (Metin Doslu <metin@citusdata.com>)
Список pgsql-performance
On 2013-12-04 16:00:40 -0200, Claudio Freire wrote:
> On Wed, Dec 4, 2013 at 1:54 PM, Andres Freund <andres@2ndquadrant.com> wrote:
> > All that time is spent in your virtualization solution. One thing to try
> > is to look on the host system, sometimes profiles there can be more
> > meaningful.
>
> You cannot profile the host on EC2.

Didn't follow the thread from the start. So, this is EC2? Have you
checked, with a recent enough version of top or whatever, how much time
is reported as "stolen"?

Greetings,

Andres Freund

--
 Andres Freund                       http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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