| From: | Tobias Brox <tobias(at)nordicbet(dot)com> |
|---|---|
| To: | Carlos Henrique Reimer <carlosreimer(at)yahoo(dot)com(dot)br> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Swapping |
| Date: | 2005-08-31 19:22:17 |
| Message-ID: | 20050831192217.GC5736@tobias.lan |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
[Carlos Henrique Reimer - Wed at 03:25:15PM -0300]
> I´m trying to tune a linux box with a 12 GB database and 4 GB RAM. First
> of all I would like to stop the swapping, so the shared_buffers and sort_mem
> were decreased but even so it started swapping two hours after DBMS started
> up.
>
> I would like to know some suggestions how to discover why is it swapping?
I agree with Tom Lane, nothing to worry about. Swapping is not a problem
per se, aggressive swapping is a problem. If you are absolutely sure you
want to ban all swapping, use "swapoff"?
I'd trust linux to handle swap/cache sensibly. Eventually, become involved
with kernel hacking ;-)
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