pgbench performance is lagging compared to Linux and DragonflyBSD?

[Samuel J. Greear]

On Tue, Nov 6, 2012 at 10:58 AM, Yuri <yuri at rawbw.com> wrote:
> On 11/05/2012 12:52, Garrett Cooper wrote:
>>
>> FWIW, I think that the last time scheduler benchmarks from anyone at
>> @FreeBSD.org (was kris@ the last one, or has flo@ run benchmarks since
>
>
> I myself ran the similar test on i7 920 (4 cores 8 threads) @ 2.67 24GB with
> 9.1-RC3 with all the same params except shmem size was 4GB, not 6GB:
> http://i.imgur.com/mfnqr.png
> In DragonflyBSD tests FreeBSD peaked at 96k tps. And my machine, with
> roughly 3X lesser power, peaked at 44.5k tps. So in my test BSD performed
> relatively better. And graph shape is more resembling linux/DragonflyBSD
> ones. It looks like in their test FreeBSD behaved in somewhat impaired way.
>
> Any ideas what can I try to tune?
>

Single and multi-socket hardware are not really directly comparable in
PostgreSQL tests.

Sam


> Yuri
>
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