Andres Freund <andres@xxxxxxxxxxx> writes: > On Wednesday 17 November 2010 00:31:34 Tom Lane wrote: >> Well, we're not going to increase the default to gigabytes > Especially not as I don't think it will have any effect after wal_segment_size > as that will force a write-out anyway. Or am I misremembering the > implementation? Well, there's a forced fsync after writing the last page of an xlog file, but I don't believe that proves that more than 16MB of xlog buffers is useless. Other processes could still be busy filling the buffers. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance