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On 24-Dec-2012, at 17:15, Georges Racinet <gracinet@anybox.fr> wrote:
> On 12/24/2012 12:32 PM, John R Pierce wrote:
>> On 12/24/2012 2:43 AM, Georges Racinet wrote:
>>> Make sure both servers aren't running at the same time
>>
>> why? its perfectly OK to ahve severla postgres servers running at
>> once, as long as they are on different port numbers. I generally use
>> 5432, 5433, 5434, etc for this. mostly for development, or for
>> migration, not so much on a production system where performance is
>> important.
>>
>>
> You're perfectly right. I'm used to have several clusters on the same
> host (application testing in my case).
> In this benchmark context, though, I just was being wary that they may
> interfere, For instance, I suppose that an autovacuum wakeup in one
> should lower performance results of the other.
>
> Sorry it that sounded more general than that.
>
>
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Hi,
Thanks for the extensive discussion.
In my case,vacuum performance plays an important role. Hence, I shall run only one server at a time while profiling.
Thanks a ton,
Atri
