Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bCBcP-0003iA-Lt for pgsql-docs@arkaria.postgresql.org; Sun, 12 Jun 2016 20:04:25 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1bCBcO-0000Gg-BQ for pgsql-docs@arkaria.postgresql.org; Sun, 12 Jun 2016 20:04:24 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1bCBc1-0008JO-0i for pgsql-docs@postgresql.org; Sun, 12 Jun 2016 20:04:01 +0000 Received: from mbob.nabble.com ([162.253.133.15]) by makus.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bCBbt-0004mO-HC for pgsql-docs@postgresql.org; Sun, 12 Jun 2016 20:03:59 +0000 Received: from msam.nabble.com (unknown [162.253.133.85]) by mbob.nabble.com (Postfix) with ESMTP id 42C052A3465C for ; Sun, 12 Jun 2016 12:44:32 -0700 (PDT) Date: Sun, 12 Jun 2016 13:03:51 -0700 (MST) From: Egor Rogov To: pgsql-docs@postgresql.org Message-ID: <1465761831654-5907482.post@n5.nabble.com> In-Reply-To: <20160601041833.30384.26519@wrigleys.postgresql.org> References: <20160601041833.30384.26519@wrigleys.postgresql.org> Subject: Re: Suspicious description of track_io_timing MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.2 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-docs Precedence: bulk Sender: pgsql-docs-owner@postgresql.org Alexander Law wrote > The following documentation comment has been logged on the website: > > Page: > https://www.postgresql.org/docs/9.6/static/runtime-config-statistics.html > Description: > > There is the following sentence in description of the track_io_timing > parameter: > > I/O timing information is displayed in <xref > linkend="pg-stat-database-view">, in the output of <xref > linkend="sql-explain"> when the > <literal>BUFFERS</> option is used, and > by <xref linkend="pgstatstatements">. > > Is it correct? Shouldn't the TIMING option be mentioned there instead > of > BUFFERS? Yes, it's correct. Track_io_timing parameter corresponds to the buffer manager. With BUFFERS option EXPLAIN shows buffers usage; when track_io_timing is on it also shows I/O read and write time. Egor Rogov Postgres Professional: http://www.postgrespro.com The Russian Postgres Company -- View this message in context: http://postgresql.nabble.com/Suspicious-description-of-track-io-timing-tp5905853p5907482.html Sent from the PostgreSQL - docs mailing list archive at Nabble.com. -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs