Re: More on 7.4b2 vs 7.3.4 performance

Josh Rovero wrote:
> Per Tom Lane's suggestion, I increased the pgbench
> scale factor to be equal to the max number of clients
> in each test run.
>
> Attached sample graph shows 1 - 10 clients,
> 100-500 transactions per client, with scale
> factor=10 for all runs.
>
> There is still a average 9% improvement in 7.4b2
> transaction rates over 7.3.4. For low number
> of clients (1 - 3) performance was almost the
> same. For higher numbers of clients, the 7.4
> advantage was often in the 15-25% range. Other
> tests with scale factor == number of clients and
> other pertubations gave similar results.
> 7.4 is almost always faster than 7.3.4.
>
> Mind you now, I am *not* complaining.

That's closer to the performance improvement we were expecting.

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