On Mon, Feb 19, 2018 at 7:27 PM, Tsunakawa, Takayuki <tsunakawa.ta...@jp.fujitsu.com> wrote: > The reason for change is better performance. Robert Haas said open_datasync > was much faster than fdatasync with NVRAM in this thread:
I also said it would be worse on spinning disks. Also, Yoshimi Ichiyanagi did not find it to be true even on NVRAM. Changing the default requires a lot more than one test result where a non-default setting is better. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
