On 6/14/13 1:06 PM, Jeff Davis wrote:
> Why have a GUC here at all? Perhaps this was already discussed, and I
> missed it? Is it just for testing purposes, or did you intend for it to
> be in the final version?
You have guessed correctly! I suggested it stay in there only to make
review benchmarking easier.
> I started looking at this patch and it looks like we are getting a
> consensus that it's the right approach. Microbenchmarks appear to show a
> benefit, and (thanks to Noah's comment) it seems like the change is
> safe. Are there any remaining questions or objections?
I'm planning to duplicate Jon's test program on a few machines here, and
then see if that turns into a useful latency improvement for clients.
I'm trying to get this pgbench rate limit stuff working first though,
because one of the tests I had in mind for WAL creation overhead would
benefit from it.
--
Greg Smith 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com
