On Wed, May 2, 2018 at 3:06 PM, Vladimir Sitnikov <sitnikov.vladi...@gmail.com> wrote: > Sample output can be seen here: > https://github.com/vlsi/pgsqlstat/tree/pgsqlio#pgsqlio
Neat. Not sure what generated this trace, but note this part: 3271838881374 88205 0 0 1663 16385 16604 0 3271840973321 4368 0 0 1663 16385 16604 1 3271842680626 4502 0 0 1663 16385 16604 1 3271846077927 4173 0 0 1663 16385 16604 1 If we want to avoid artificial inflation of usage counts, that kind of thing would be a good place to start -- obviously 4 consecutive accesses to the same buffer by the same backend doesn't justify a separate usage count bump each time. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
