Re: How to keep a table in memory? - Mailing list pgsql-hackers

Devrim GÜNDÜZ wrote:
> Hi,
> 
> On Mon, 2007-11-12 at 21:15 -0500, Robert Treat wrote:
>>> 2. you should investigate one or more of: pg_memcache, solid state
>>> disk.
>> you might also consider creating a tablespace on tmpfs or ramfs or
>> something like pramfs
> 
> IIRC, ramfs are not that good for database use: If you want to extend
> its size, you have to stop the database instance -- which is not
> considered good.

Well, depending on the size you could push the table to another table 
space, drop the old table space, resize the ramfs, and reverse the 
previous :)

Joshua D. Drake

> 
> Regards,