Bruce Momjian wrote:
> This has been saved for the 8.4 release:

I think the work on VIDs and latestCompletedXid make this completely

> ---------------------------------------------------------------------------
> Simon Riggs wrote:
> > Jignesh Shah's scalability testing on Solaris has revealed further
> > tuning opportunities surrounding the start and end of a transaction.
> > Tuning that should be especially important since async commit is likely
> > to allow much higher transaction rates than were previously possible.
> > 
> > There is strong contention on the ProcArrayLock in Exclusive mode, with
> > the top path being CommitTransaction().

Alvaro Herrera                      
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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