Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iZgL6-0004Jo-Q9 for pgsql-hackers@arkaria.postgresql.org; Tue, 26 Nov 2019 19:17:34 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iZgL5-0002Kg-JB for pgsql-hackers@arkaria.postgresql.org; Tue, 26 Nov 2019 19:17:31 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iZgL3-0002Gz-Pq for pgsql-hackers@lists.postgresql.org; Tue, 26 Nov 2019 19:17:31 +0000 Received: from out1-smtp.messagingengine.com ([66.111.4.25]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iZgL0-0004Sz-1y for pgsql-hackers@lists.postgresql.org; Tue, 26 Nov 2019 19:17:28 +0000 Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id 6E257228D5; Tue, 26 Nov 2019 14:17:22 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute7.internal (MEProxy); Tue, 26 Nov 2019 14:17:22 -0500 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=fm1; bh=TIbQxzZDH0cX/io/w3mHOyZZgpKq2ITGgjEx9aT2v w8=; b=mowKx2YRAuH9ftUtPEt6S0jWaV1TRNcKBxLmwkKPoUwuCsOIvHFkSTeFc u+wiw1nE3exeOffSHfUfBqgqMb8n260Z15xgTiLMCIt3UlblHdid3UZNSQTAnRuh d8cIUM2HzRG4fJIPyL48AXZDa51yah7i4rqVtQRcgtJQcm4rnP0w9EAsAL4jw4yl NUdZ1aC4mPyhetr6+7mgxpz9ChqY54TYRFQVQNs8RfC7OGoMyw6tdn11Lh9n16LK caosVnEuuFSX5LTracnSXGrwxo2Q5tCnVfueJZoYImvNa+jCqnVP/4lPT6jwuK/1 Nt9alTg62OYbEP3TeKN5eENw9wuXg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedufedrudeifedguddvgecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefuvfhfhfhokffffgggjggtgfesthejredttdefheenucfhrhhomheprfgv thgvrhcugfhishgvnhhtrhgruhhtuceophgvthgvrhdrvghishgvnhhtrhgruhhtsedvnh guqhhurggurhgrnhhtrdgtohhmqeenucffohhmrghinhepvdhnughquhgrughrrghnthdr tghomhenucfkphepleefrddvgedvrddugeejrdejleenucfrrghrrghmpehmrghilhhfrh homhepphgvthgvrhdrvghishgvnhhtrhgruhhtsedvnhguqhhurggurhgrnhhtrdgtohhm necuvehluhhsthgvrhfuihiivgeptd X-ME-Proxy: Received: from april.pezone.net (p5df2934f.dip0.t-ipconnect.de [93.242.147.79]) by mail.messagingengine.com (Postfix) with ESMTPA id BB9B03060065; Tue, 26 Nov 2019 14:17:15 -0500 (EST) Subject: Re: pglz performance To: Tomas Vondra , Michael Paquier References: <3c2d92d0-e715-f9ed-e1a7-3c510ed65940@2ndquadrant.com> <20191101154828.GA15829@alvherre.pgsql> <20191101165950.b5azncggaqfan5fi@development> <35c2a448-06b8-eab0-05ea-34a3f51ba9a8@2ndquadrant.com> <20191125080309.GK99720@paquier.xyz> <13C6049A-C3D9-4021-9934-41488DE38BE9@yandex-team.ru> <20191125082940.GP99720@paquier.xyz> <20191126094324.7y2n3n3houetavwd@development> Cc: Andrey Borodin , Alvaro Herrera , Gasper Zejn , pgsql-hackers@lists.postgresql.org From: Peter Eisentraut Organization: 2ndQuadrant Message-ID: Date: Tue, 26 Nov 2019 20:17:13 +0100 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: <20191126094324.7y2n3n3houetavwd@development> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2019-11-26 10:43, Tomas Vondra wrote: > In general, I think the results for both patches seem clearly a win, but > maybe patch 1 is bit better, especially on the newer (xeon) CPU. So I'd > probably go with that one. Patch 1 is also the simpler patch, so it seems clearly preferable. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services