Josh Berkus wrote:
> Bruce,
>
> > Yes. If you were doing multiple WAL writes before transaction fsync,
> > you would be fsyncing every write, rather than doing two writes and
> > fsync'ing them both. I wonder if larger transactions would find
> > open_sync slower?
>
> Want me to test? I've got an ide-based test machine here, and the TPCC
> databases.
I would be interested to see if wal_sync_method = fsync is slower than
wal_sync_method = open_sync. How often are we doing more then one write
before a fsync anyway?
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
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