Re: PostgreSQL performance on FreeBSD

On 7/16/2014 5:59 PM, Konstantin Belousov wrote:
> On Fri, Jun 27, 2014 at 03:56:13PM +0300, Konstantin Belousov wrote:
>> Hi,
>> I did some measurements and hacks to see about the performance and
>> scalability of PostgreSQL 9.3 on FreeBSD, sponsored by The FreeBSD
>> Foundation.
>>
>> The results are described in https://kib.kiev.ua/kib/pgsql_perf.pdf.
>> The uncommitted patches, referenced in the article, are available as
>> https://kib.kiev.ua/kib/pig1.patch.txt
>> https://kib.kiev.ua/kib/patch-2
> A followup to the original paper.
>
> Most importantly, I identified the cause for the drop on the graph
> after the 30 clients, which appeared to be the debugging version
> of malloc(3) in libc.
>
> Also there are some updates on the patches.
>
> New version of the paper is available at
> https://www.kib.kiev.ua/kib/pgsql_perf_v2.0.pdf
> The changes are marked as 'update for version 2.0'.

Thanks for the great work!

Did you tested the effect of hyper-threading (on or off) on the results?


-- 

Best regards.
Hooman Fazaeli