fkater@xxxxxxxxxxxxxx: > I'll try to execute these tests on a SSD > and/or Raid system. FYI: On a recent but mid-range performing SSD (128 MB size, serially writing 80-140 MB, 100 MB average) the situation was worse for some reason. No difference by fsync=on/off. Felix -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance