On 2016-04-14 07:59:07 +0530, Amit Kapila wrote: > What you want to see by prewarming?
Prewarming appears to greatly reduce the per-run variance on that machine, making it a lot easier to get meaningful results. Thus it'd make it easier to compare pre/post padding numbers. > Will it have safe effect, if the tests are run for 10 or 15 mins > rather than 5 mins? s/safe/same/? If so, no, I doesn't look that way. The order of buffers appears to play a large role; and it won't change in a memory resident workload over one run. Greetings, Andres Freund -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
