Re: Pooling in Core WAS: Need help in performance tuning.

On Sun, Jul 18, 2010 at 10:55 PM, Greg Smith <greg(at)2ndquadrant(dot)com> wrote:

> Rajesh Kumar Mallah wrote:
>
>> the no of clients was 10 ( -c 10) carrying out 10000 transactions each
>> (-t 10000) .
>> pgbench db was initilised with scaling factor -s 100.
>>
>> since client count was less there was no queuing of requests in pgbouncer
>> i would prefer to say it was in 'passthrough' mode.
>>
>
> Of course pgbouncer is going decrease performance in this situation.
> You've added a whole layer to things that all traffic has to pass through,
> without a setup that gains any benefit from the connection pooling. Try
> making the client count 1000 instead if you want a useful test.
>

Dear Greg,

my max_client is 300 shall i test with client count 250 ?
if so what should be the scaling factor while initializing
the pgbench db?

> --
> Greg Smith 2ndQuadrant US Baltimore, MD
> PostgreSQL Training, Services and Support
> greg(at)2ndQuadrant(dot)com www.2ndQuadrant.us
>
>