From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f54.google.com ([209.85.214.54]:36001 "EHLO mail-it0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753909AbdBGUA2 (ORCPT ); Tue, 7 Feb 2017 15:00:28 -0500 Received: by mail-it0-f54.google.com with SMTP id c7so85048523itd.1 for ; Tue, 07 Feb 2017 11:59:46 -0800 (PST) Received: from [191.9.206.254] (rrcs-70-62-41-24.central.biz.rr.com. [70.62.41.24]) by smtp.gmail.com with ESMTPSA id n67sm117447ith.0.2017.02.07.11.59.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 07 Feb 2017 11:59:45 -0800 (PST) Subject: Re: BTRFS for OLTP Databases To: linux-btrfs@vger.kernel.org References: <4e91cc08-19a4-5433-c1d3-60918906b022@gmail.com> <20170207203913.02ffd712@jupiter.sol.kaishome.de> From: "Austin S. Hemmelgarn" Message-ID: <7b64beca-077c-444d-50e9-c5e616a1a3d6@gmail.com> Date: Tue, 7 Feb 2017 14:59:41 -0500 MIME-Version: 1.0 In-Reply-To: <20170207203913.02ffd712@jupiter.sol.kaishome.de> Content-Type: text/plain; charset=windows-1252; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2017-02-07 14:39, Kai Krakow wrote: > Am Tue, 7 Feb 2017 10:06:34 -0500 > schrieb "Austin S. Hemmelgarn" : > >> 4. Try using in-line compression. This can actually significantly >> improve performance, especially if you have slow storage devices and >> a really nice CPU. > > Just a side note: With nodatacow there'll be no compression, I think. > At least for files with "chattr +C" there'll be no compression. I thus > think "nodatacow" has the same effect. You're absolutely right, thanks for mentioning this, I completely forgot to point it out myself.