Re: Resource Usage same In spite of fronting my DB server with Pgbouncer ?

On Sat, Jan 24, 2026 at 12:18 AM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

>
>
> On 1/23/26 10:14 AM, KK CHN wrote:
> >
> >
> >
> > List,
> > I am fronting my postgres 16 server with pgbouncer1.23.1
> >
> > What surprises me, even though I am deploying pgbouncer as a separate
> > VM in front of DB server VM, the top command shows the almost same
> > resource usage statistics in the case of load averages, Memory usage etc
> > on the DB Server, whether I am infronting DB server with pgbouncer or
> not.
> >
> > Please find the top output from the db server pasted here.
> >
> > https://glot.io/snippets/hf4ilogbz0 <https://glot.io/snippets/hf4ilogbz0
> >
> >
> > My Pgbouncer server top output shows littler resource usages in terms
> > of CPU, MEM usage
> > on the top out put of pgbouncer VM ( load averagaes less than 3
> > always, and Ram usage is very low, swap usage almost nil..
> >
> >
> > Why eventhough I have deployed pgbouncer for this setup why DB server
> > still shows large resource usage as in the pasted out put.
>
> That would seem logical to me as pgBouncer is just passing the
> connections to the Postgres server, the server is doing the heavy
> lifting of dealing with statements in the connections.
>

You mean to say the SQL statements are making this issue ? I also
suspected wrongly formed query statements making this much load on the DB
server.
I also suspect this, as the developers who write queries are not so
expertised for writing optimized queries, needs to be addressed separately.

How can I find out which query statements are making the DB server on its
knees ? Any method to find the bad queries? what parameters/behaviours to
be checked for finding those query statements which really makes the
db server to its knees by the heavy lifting ? any hints most welcome, I
can explore and fix those ones.

>
> From the top output it looks like you are working with some form of a
> EDB product. You need to specify what that product is and it's version.

Sorry I missed to mention it, this is an EDB 16 server. Eventhoug I
prefer to use any piece of S/W that is FOSS community editions, sometimes
it is demanded to manage these products too.

>
> This list is for the community version of Postgres and people will
> assume that is what you are talking about. There are folks that maybe
> able to help with EDB versions, but they need to know what it is.
>
>
> > Regards,
> > Krishane
>
>