Re: postgres performance tunning

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От Robert Haas
Тема Re: postgres performance tunning
Дата
Msg-id AANLkTinQmo7F+fu90X10Qy3GkQDZzObZJ1Wp3sC9N=pe@mail.gmail.com
обсуждение исходный текст
Ответ на Re: postgres performance tunning  (Greg Smith <greg@2ndquadrant.com>)
Ответы Re: postgres performance tunning  (Scott Marlowe <scott.marlowe@gmail.com>)
Список pgsql-performance
On Mon, Dec 20, 2010 at 12:49 PM, Greg Smith <greg@2ndquadrant.com> wrote:
> Scott Marlowe wrote:
>> I can sustain about 5,000 transactions per second on a machine with 8
>> cores (2 years old) and 14 15k seagate hard drives.
>
> Right.  You can hit 2 to 3000/second with a relatively inexpensive system,
> so long as you have a battery-backed RAID controller and a few hard drives.
>  Doing 5K writes/second is going to take a giant pile of hard drive or SSDs
> to pull off.  There is no possible way to meet the performance objectives
> here without a lot more cores in the server and some pretty beefy storage
> too.

Is this with synchronous_commit on, or off?

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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