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From: Scott Ribe <scott_ribe@elevated-dev.com>
To: Murthy Nunna <mnunna@fnal.gov>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: Intermittent Query Performance Issue
Date: Fri, 19 Apr 2024 21:10:22 -0600
Message-ID: <0573591A-B0F2-461D-9F3E-6DF303D9DB62@elevated-dev.com> (raw)
In-Reply-To: <DM8PR09MB6677DA47FC6D842AEEF5D8EAB80C2@DM8PR09MB6677.namprd09.prod.outlook.com>
References: <DM8PR09MB66772143CBEAD3538AB98906B80D2@DM8PR09MB6677.namprd09.prod.outlook.com>
	<CANzqJaCrc92PgnogA7o9qHuG3geAZjou8ZJyvYYE9c-nDGTYJQ@mail.gmail.com>
	<DM8PR09MB6677DA47FC6D842AEEF5D8EAB80C2@DM8PR09MB6677.namprd09.prod.outlook.com>

I wonder if it could be cache eviction? You query runs fast when relevant parts of the table are in cache, and other times, other queries (or system activity) have forced that data out of cache.

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  To: pgsql-admin@postgresql.org
  Cc: scott_ribe@elevated-dev.com, mnunna@fnal.gov
  Subject: Re: Intermittent Query Performance Issue
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