--- postgresql.conf.orig	2019-11-14 07:19:25.745391000 +0100
+++ postgresql.conf	2020-06-06 20:20:45.295974000 +0200
@@ -209,7 +209,9 @@
 #wal_log_hints = off			# also do full page writes of non-critical updates
 					# (change requires restart)
 #wal_init_zero = on			# zero-fill new WAL files
+wal_init_zero = off			# The default makes no sense when using ZFS.
 #wal_recycle = on			# recycle WAL files
+wal_recycle = off			# The default makes no sense when using ZFS.
 #wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
 					# (change requires restart)
 #wal_writer_delay = 200ms		# 1-10000 milliseconds
@@ -547,7 +549,8 @@
 					# (change requires restart)
 
 # On FreeBSD, this is a performance hog, so keep it off if you need speed
-update_process_title = off
+#update_process_title = off
+update_process_title = on		# This is a laptop. There is no harm in knowing what is going on.
 
 
 #------------------------------------------------------------------------------