On 2015-07-03 07:38:15 +0200, Fabien COELHO wrote: > I've submitted a patch to improve checkpoint write scheduling, including X00 > hours of performance test on various cases. This patch changes significantly > the load distribution over the whole checkpoint, and AFAICS has been tested > on rather small cases. > > I'm not sure that the power 1.5 is the right one for all cases. For a big > checkpoint over 30 minutes, it may have, or not, very large and possibly > unwanted effects. Maybe the 1.5 factor should really be a guc. Well, what I > really think is that it needs performance measures. > > In conclusion, and very egoistically, I would prefer if this patch could > wait for the checkpoint scheduling patch to be considered, as it would > basically invalidate the X00 hours of performance tests I ran:-)
These two patches target pretty independent mechanics. If you patch were significantly influenced by this something would be wrong. It might decrease the benefit of your patch a mite, but that's not really a problem. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
