> Purpose is to provide consistent WAL writes, even when WALInsertLock
> contended. Currently no "off" option, thinking is that the overhead of
> doing this is relatively low and so it can be "always on" - exactly as
> it is for sync rep.

Hmmm, have you had a chance to do any performance tests?

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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