| From: | Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
|---|---|
| To: | "'Pascal Laporte (plaporte) *EXTERN*'" <plaporte(at)cisco(dot)com>, "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: monitoring TPS and IOPS |
| Date: | 2015-05-27 09:15:40 |
| Message-ID: | A737B7A37273E048B164557ADEF4A58B366169DB@ntex2010i.host.magwien.gv.at |
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| Lists: | pgsql-admin |
Pascal Laporte wrote:
> For IOPS when doing load testing we would like to tell if the IO requests made by the DB can be
> handled by the server.
> In oracle this information is stored in tables and so wondering if similar data can be found in PG as
> well.
> I’m not sure how feasible it will be using OS tools.
That works fine in my experience (which is on Linux).
I watch out for the I/O queue size, the service time and the I/O utilization.
When the queue size increases, it is an inication that the system cannot keep
up with the load.
Yours,
Laurenz Albe
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