Re: PostgreSQL 9.2 benchmarks

[Jan Lentfer <Jan.Lentfer@xxxxxx>]

On Mon, 27 Aug 2012 11:31:30 +0100, Mindaugas Rasiukevicius wrote:
> Hello,
>
> Francois Tigeot <ftigeot@wolfpond.org> wrote:
>> I took advantage of an available dual-Xeon box to do some 
>> scalability
>> benchmarking.
>>
>> <...>
>>
>> Results with graphs are in the attached PDF file.
>>
>> Some rapid conclusions:
>> - Scientific Linux smokes all other operating systems
>> - DragonFly and FreeBSD performance is mostly the same, FreeBSD 
>> degrades
>>   faster under high loads
>> - NetBSD has trouble handling high numbers of database clients but 
>> still
>>   manages to scale when numbers are low
>> - Keeping processes on the same location they last ran on increases
>>   performance by a few percents
>
> Would you be able to try using local UNIX socket?  NetBSD should have
> nearly linear scalability, unless there is some regression.  Going 
> through
> 127.0.0.1 is what kills us, I believe.
>
> Thanks.

IIRC domain sockets are serialized...??

Jan

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