Re: PostgreSQL 8.0 occasionally slow down

On Fri, 29 Jun 2007, Ho Fat Tsang wrote:

> I noticed that for each time the pgsql slow down, there is a short
> period a process called "pdflush" eating up lot of I/O. I've goolgled
> and know it is a process for writing dirty pages back to the disk by the
> Linux kernel.

The pdflush documentation is really spread out, you may find my paper at
http://www.westnet.com/~gsmith/content/linux-pdflush.htm a good place to
start looking into that.

--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD