UFS2 w/ soft updates on FreeBSD might be an interesting addition to the list of test cases
On Fri, Jun 4, 2010 at 9:33 AM, Andres Freund <and...@anarazel.de> wrote: > On Friday 04 June 2010 16:25:30 Tom Lane wrote: > > Andres Freund <and...@anarazel.de> writes: > > > On Friday 04 June 2010 14:17:35 Jon Schewe wrote: > > >> XFS (logbufs=8): ~4 hours to finish > > >> ext4: ~1 hour 50 minutes to finish > > >> ext3: 15 minutes to finish > > >> ext3 on LVM: 15 minutes to finish > > > > > > My guess is that some of the difference comes from barrier differences. > > > ext4 uses barriers by default, ext3 does not. > > Or, to put it more clearly: the reason ext3 is fast is that it's unsafe. > Jon: To verify you can enable it via the barrier=1 option during mounting.. > > Andres > > -- > Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance >
