On 2016-08-23 18:18:57 +0300, Heikki Linnakangas wrote:
> I installed Greg Smith's pgbench-tools kit on that server, and ran some
> tests. I'm seeing some benefit on "pgbench -N" workload, but only after
> modifying the test script to use "-M prepared", and using Unix domain
> sockets instead of TCP to connect. Apparently those things add enough
> overhead to mask out the little difference.

To make the problem more apparent, how are the differences for something
as extreme as just a
or a
SELECT 1 FROM pgbench_accounts WHERE aid = 1;


Andres Freund

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