Re: [PATCHES] Load Distributed Checkpoints, revised patch

On Fri, 2007-06-15 at 13:11 +0200, Michael Paesold wrote:
> Heikki Linnakangas wrote:
> > Here's an updated WIP version of the LDC patch. I just spreads the
> > writes, that achieves the goal of smoothing the checkpoint I/O spikes. I
> > think sorting the writes etc. is interesting but falls in the category
> > of further development and should be pushed to 8.4.
>
> Why do you think so? Is it too much risk to adapt the sorted writes? The
> numbers shown by ITAGAKI Takahiro looked quite impressive, at least for
> large shared_buffers configurations. The reactions where rather
> positive, too.

Agreed.

Seems like a simple isolated piece of code to include or not. If we
controlled it with a simple boolean parameter, that would allow testing
during beta - I agree it needs more testing.

If we find a way of automating it, cool. If its flaky, strip it out
before we release.

--
  Simon Riggs
  EnterpriseDB   http://www.enterprisedb.com