Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1n2HIo-0004To-0z for pgsql-performance@arkaria.postgresql.org; Tue, 28 Dec 2021 18:34:26 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1n2HIm-0003sN-TY for pgsql-performance@arkaria.postgresql.org; Tue, 28 Dec 2021 18:34:24 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1n2HIm-0003sE-KO for pgsql-performance@lists.postgresql.org; Tue, 28 Dec 2021 18:34:24 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1n2HIk-00061z-8f for pgsql-performance@postgresql.org; Tue, 28 Dec 2021 18:34:24 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 1BSIYIFF1909874; Tue, 28 Dec 2021 13:34:18 -0500 From: Tom Lane To: Marc Millas cc: pgsql-performance@postgresql.org Subject: Re: 9.6 write time In-reply-to: References: <1905390.1640713604@sss.pgh.pa.us> Comments: In-reply-to Marc Millas message dated "Tue, 28 Dec 2021 18:55:47 +0100" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1909872.1640716458.1@sss.pgh.pa.us> Date: Tue, 28 Dec 2021 13:34:18 -0500 Message-ID: <1909873.1640716458@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Marc Millas writes: > checkpoint completion target is 0.9 checkpoint_timeout is the more interesting number here. regards, tom lane