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 1jLTG5-0004fd-Lw for pgsql-hackers@arkaria.postgresql.org; Mon, 06 Apr 2020 15:01:54 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1jLTG4-0002Gz-Bx for pgsql-hackers@arkaria.postgresql.org; Mon, 06 Apr 2020 15:01:52 +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 1jLTG3-0002DN-Jq for pgsql-hackers@lists.postgresql.org; Mon, 06 Apr 2020 15:01:52 +0000 Received: from [64.147.123.20] (helo=wout4-smtp.messagingengine.com) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jLTFz-0002Ju-VB for pgsql-hackers@postgresql.org; Mon, 06 Apr 2020 15:01:51 +0000 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id 17620396; Mon, 6 Apr 2020 11:01:35 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Mon, 06 Apr 2020 11:01:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; bh=jSmNzYbpWZRi4PA9ZVMJUgqyqyAYcvV6Nvahpzx6A IY=; b=gHC8XWLpksVspqY/wIuf5IKXSfDBgEndyY4H2HKVGcOBTFfbHC0Kq0JUl K6DI3OkWOrZk5ALd3XwXpO4rZeyK3kFDx09qM3qOa581Uui2mB9bnp3VAaMCSL80 lAk/MPSmCcJutHF23PG3is/MEs9q2KBzlfThHySOXs1xOzvLedRN7LdBYz2rWSd+ mDOha8FMEjLCGBSFAFr+FmAFeRjB71PjVrrlJlG8j6QX44JqYUXoYY3sDADB1HYu gD39dqE4i9wSs1LLuJIQEzCbFRLGEYgs2dVmUfzRJgBZAehlvjsLXKjjbTDEXsVL t75nca+4a0T6jlPrvTjX5g8C3AhSw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduhedrudefgdejiecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefuvfhfhfhokffffgggjggtgfesthejredttdefjeenucfhrhhomheprfgvthgv rhcugfhishgvnhhtrhgruhhtuceophgvthgvrhdrvghishgvnhhtrhgruhhtsedvnhguqh hurggurhgrnhhtrdgtohhmqeenucffohhmrghinhepvdhnughquhgrughrrghnthdrtgho mhenucfkphepleefrddvgedvrddvudefrddvgedunecuvehluhhsthgvrhfuihiivgeptd enucfrrghrrghmpehmrghilhhfrhhomhepphgvthgvrhdrvghishgvnhhtrhgruhhtsedv nhguqhhurggurhgrnhhtrdgtohhm X-ME-Proxy: Received: from april.pezone.net (p5df2d5f1.dip0.t-ipconnect.de [93.242.213.241]) by mail.messagingengine.com (Postfix) with ESMTPA id 9B4F3328006B; Mon, 6 Apr 2020 11:01:32 -0400 (EDT) Subject: Re: WAL usage calculation patch To: Amit Kapila , Dilip Kumar References: <20200330124356.GE79261@nol> <20200401080152.GA82418@nol> <20200401142954.GA64485@nol> <20200402083035.GB64485@nol> <20200402124818.GD64485@nol> Cc: Julien Rouhaud , Kuntal Ghosh , Fujii Masao , Kirill Bychik , PostgreSQL Hackers , Thomas Munro From: Peter Eisentraut Organization: 2ndQuadrant Message-ID: Date: Mon, 6 Apr 2020 17:01:30 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 64.147.123.20 (deferred) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk I noticed in some of the screenshots that were tweeted that for example in WAL: records=1 bytes=56 there are two spaces between pieces of data. This doesn't match the rest of the EXPLAIN output. Can that be adjusted? -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services