- Архив списков рассылки pgsql-general

Поиск
Список
Период
Сортировка
От Laurent Manchon
Тема
Дата
Msg-id 5.0.2.1.2.20070122102742.00d1ae40@pop.univ-montp2.fr
обсуждение исходный текст
Ответы Re:  ("Chad Wagner" <chad.wagner@gmail.com>)
Список pgsql-general
Hi,

I have a slow response of my PostgreSQL database 7.4 using this query below
on a table with 800000 rows:

select count(*)from tbl;

PostgreSQL return result in 28 sec every time.
although MS-SQL return result in 0.02 sec every time.

My server is a DELL PowerEdge 2600 with bi-processor Xeon at 3.2 Ghz
with 3GBytes RAM


My PostgreSQL Conf is
*********************
log_connections = yes
syslog = 2
effective_cache_size = 50000
sort_mem = 10000
max_connections = 200
shared_buffers = 3000
vacuum_mem = 32000
wal_buffers = 8
max_fsm_pages = 2000
max_fsm_relations = 100

Can you tell me is there a way to increase performance ?

Thank you




+-----------------------------------------------------+
| Laurent Manchon                                     |
| Email: lmanchon@univ-montp2.fr                     |
+-----------------------------------------------------+

В списке pgsql-general по дате отправления:

Предыдущее
От: Paul Lambert
Дата:
Сообщение: Re: Installing Postegres side-by-side with M$ SQL server
Следующее
От: "deepak pal"
Дата:
Сообщение: show all record between two date after group by and aggrigation...