From: Mladen Gogala <gogala.mladen@gmail.com>
To: pgsql-performance@lists.postgresql.org
Subject: Re: HIGH IO and Less CPU utilization
Date: Thu, 31 Mar 2022 10:44:57 -0400
Message-ID: <a5209b27-f57a-59a6-8b6b-c71095ffd91e@gmail.com> (raw)
In-Reply-To: <CADdgF6ecxpubq-wm4bcDCyj3yt6uNjJgXKcdCS2Jn+NvE4abFw@mail.gmail.com>
References: <CADdgF6ecxpubq-wm4bcDCyj3yt6uNjJgXKcdCS2Jn+NvE4abFw@mail.gmail.com>
On 3/29/22 14:04, Rambabu g wrote:
> Hi All,
>
> We have an issue with high load and IO Wait's but less cpu on postgres
> Database, The emp Table size is around 500GB, and the connections are
> very less.
>
> Please suggest to us do we need to change and config parameters at
> system level or Postgres configuration.
The "emp" table is 500 GB? You're doing something wrong, The "emp" table
should have 14 rows and the "dept" table should have 4 rows The "bonus"
and "salgrade" tables should also be very small. The guy named Bruce
Scott could probably help you with that schema. Other than that, do you
have a SQL causing all this ruckus and a detailed explain plan ("explain
(analyze,costs,buffers)") for the SQL using most of the time? You can
analyze the log file with PgBadger to get the queries consuming the most
time.
--
Mladen Gogala
Database Consultant
Tel: (347) 321-1217
https://dbwhisperer.wordpress.com
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Subject: Re: HIGH IO and Less CPU utilization
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