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From: Scott Ribe <scott_ribe@elevated-dev.com>
To: jian xu <jamesxu@outlook.com>
Cc: Laurenz Albe <laurenz.albe@cybertec.at>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: checkpoint process use too much memory
Date: Mon, 20 Apr 2020 13:23:06 -0600
Message-ID: <B2103F5D-29DD-465C-A43B-9973EC313799@elevated-dev.com> (raw)
In-Reply-To: <MN2PR05MB6832881823D2B12D767C8C67A1D40@MN2PR05MB6832.namprd05.prod.outlook.com>
References: <MN2PR05MB68322593E34D4BF78AD45137A1D70@MN2PR05MB6832.namprd05.prod.outlook.com>
	<5193b00d175f2e06a171ba375f1ef723e1700de4.camel@cybertec.at>
	<MN2PR05MB6832AA29B8D72FCA59D29E19A1D40@MN2PR05MB6832.namprd05.prod.outlook.com>
	<C7D8AF88-5A80-4F1E-B3AF-7BB01369FD87@elevated-dev.com>
	<MN2PR05MB6832881823D2B12D767C8C67A1D40@MN2PR05MB6832.namprd05.prod.outlook.com>

> On Apr 20, 2020, at 1:13 PM, jian xu <jamesxu@outlook.com> wrote:
> 
> Do you mean the file cache will be counted in postgres checkpointer memory usage?

No, it won't be counted as PG memory. I just mean that free memory low is not a sign of a problem, when it's file cache.





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