On 2017-01-22 00:41:55 +0900, Fujii Masao wrote: > On Sun, Jan 22, 2017 at 12:18 AM, Petr Jelinek > <petr.jeli...@2ndquadrant.com> wrote: > > On 21/01/17 11:39, Magnus Hagander wrote: > >> Is it time to enable checksums by default, and give initdb a switch to > >> turn it off instead? > > > > I'd like to see benchmark first, both in terms of CPU and in terms of > > produced WAL (=network traffic) given that it turns on logging of hint bits. > > +1 > > If the performance overhead by the checksums is really negligible, > we may be able to get rid of wal_log_hints parameter, as well.
It's not just the performance overhead, but also the volume of WAL due to the additional FPIs... Andres -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers