Re: LISTEN/NOTIFY benchmarks?

prashanth@jibenetworks.com writes:
> I'm not an expert on signals, not even a novice, so I might be totally
> off base, but it seems like the Async Notification implementation does
> not scale.

Very possibly.  You didn't even mention the problems that would occur if
the pg_listener table didn't get vacuumed often enough.

The pghackers archives contain some discussion about reimplementing
listen/notify using a non-table-based infrastructure.  But AFAIK no one
has picked up that task yet.
        regards, tom lane