| From: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
|---|---|
| To: | tuanhoanganh <hatuan05(at)gmail(dot)com> |
| Cc: | PostgreSQL <pgsql-general(at)postgresql(dot)org>, pgsql-performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: [PERFORM] Why Postgres use a little memory on Windows. |
| Date: | 2016-02-21 02:21:38 |
| Message-ID: | CAMkU=1xhON9jpYGpQQVGDdWmk5F-rsAPC_JKwYhv-0yMq8Va1w@mail.gmail.com |
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| Lists: | pgsql-general pgsql-performance |
On Sat, Feb 20, 2016 at 8:46 AM, tuanhoanganh <hatuan05(at)gmail(dot)com> wrote:
> Hello
>
> I have a bad query on PostgreSQL 9.0.23 - 64bit - Windows 2012 R2 - 48GB Ram
9.0 is no longer supported. You should work toward upgrading to a
newer version. It might not solve this problem, but it would give you
better tools for diagnosing the problem. Which is a pretty good step
toward solving it.
> When I check taskmanager, I found postgres process is user 4-5MB
Other people have explained the details of how the query is being run
and why it is being run that way. But I would like to take a step
back from that, and tell you that the reason that PostgreSQL is not
using more memory, is that it doesn't think that using more memory
would help.
Cheers,
Jeff
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