Re: Abnormal performance difference between Postgres and MySQL
| От | Farhan Husain |
|---|---|
| Тема | Re: Abnormal performance difference between Postgres and MySQL |
| Дата | |
| Msg-id | 3df32b6d0902251332t3e0ea398qfd5c7d527d00539e@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Abnormal performance difference between Postgres and MySQL (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: Abnormal performance difference between Postgres and
MySQL
Re: Abnormal performance difference between Postgres and MySQL |
| Список | pgsql-performance |
On Wed, Feb 25, 2009 at 3:30 PM, Robert Haas <robertmhaas@gmail.com> wrote:
On Wed, Feb 25, 2009 at 3:44 PM, Farhan Husain <russoue@gmail.com> wrote:Well, if you set it back to what we consider to be a reasonable value,
> Initially, it was the default value (32MB). Later I played with that value
> thinking that it might improve the performance. But all the values resulted
> in same amount of time.
rerun EXPLAIN ANALYZE, and post that plan, it might help us tell you
what to do next.
...Robert
Right now I am running the query again with 32MB work_mem. It is taking a long time as before. However, I have kept the following values unchanged:
shared_buffers = 32MB # min 128kB or max_connections*16kB
temp_buffers = 1024MB # min 800kB
Do you think I should change them to something else?
Thanks,
Do you think I should change them to something else?
Thanks,
--
Mohammad Farhan Husain
Research Assistant
Department of Computer Science
Erik Jonsson School of Engineering and Computer Science
University of Texas at Dallas
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