>>>>> "BM" == Bruce Momjian <[EMAIL PROTECTED]> writes:

>> Sounds reasonable to me.  Are there many / any scenarios where a plain 
>> fsync would be faster than open_sync?

BM> Yes.  If you were doing multiple WAL writes before transaction fsync,
BM> you would be fsyncing every write, rather than doing two writes and
BM> fsync'ing them both.  I wonder if larger transactions would find
BM> open_sync slower?

consider loading a large database from a backup dump.  one big
transaction during the COPY.  I don't know the implications it has on
this scenario, though.

Vivek Khera, Ph.D.                Khera Communications, Inc.
Internet: [EMAIL PROTECTED]       Rockville, MD       +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/

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