Re: Poor performance of btrfs with Postgresql

> I've done some testing of PostgreSQL on different filesystems, and with
> different filesystem mount options.

Since Pg is already "journalling", why bother duplicating (and pay the
performance penalty, whatever that penalty may be) the effort for no real
gain (except maybe a redundant sense of safety)?  ie, use a
non-journalling battle-tested fs like ext2.

Regards
Henry