Bruce Momjian <> writes:
> Was it a big benefit only for SMP machines?

Probably.  I did some simple pgbench checks and found that the new code
seemed no better than the old on a one-processor machine.  However, as
long as it's not worse for a uniprocessor, who cares?

It would be good to try to get some more measurements to verify this.
Never did trust pgbench ...

                        regards, tom lane

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