PostgreSQL benchmarks (now with Linux numbers)

[Francois Tigeot]

On Tue, Nov 15, 2011 at 11:37:06PM +0100, Francois Tigeot wrote:
> 
> I have been running PostgreSQL benchmarks for the last few days.
> 
> The main idea was to test the scalability of DragonFly on many cores; for that
> purpose I used a tool included with Postgres, Pgbench.
> 
> The server machine was a dual-Xeon system, with 12 cores, 24 hardware threads
> and 96GB of memory.

Due to popular requests, I have updated the results on page 2 with
Postgres-9.1.1 on Linux numbers.

Scientific Linux was the fastest of all operating systems once there were more
processes running than cores.
It was also the less stable. I discovered more than once the machine was
completely frozen (blank screen, no keyboard or network response). Even a NMI
couldn't change anything.

-- 
Francois Tigeot
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