From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id AAF3C7199B for ; Fri, 9 Apr 2021 01:51:15 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 9B6781FF68 for ; Fri, 9 Apr 2021 01:51:15 +0200 (CEST) Received: from mout.web.de (mout.web.de [212.227.15.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id 081AD1FF58 for ; Fri, 9 Apr 2021 01:51:14 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1617925867; bh=R9Bf0Bv3gCIZIQCNgC0jABaif0vIUvrJn7vFjfbPins=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=UU8ZEbse1g3Ii39YP6TIOFewI7tReHubAlMIhFNL9yyriWMKNeP+i+8YfAzoZvMc/ KdGMcHSu8CT83G5Pj75px8QGnl88Jz6scol1WKkf9aFT5TpX2YMpUr7Cqbbh6cGz2R 9ZJfY4HzlfqCNRpJriaCs+fKP4NU0eQFjWNJ3eyI= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from Rolands-MacBook-Pro.cybercon.de ([87.78.64.131]) by smtp.web.de (mrweb002 [213.165.67.108]) with ESMTPSA (Nemesis) id 0M7sga-1lqYxu3tKq-00vMsX; Fri, 09 Apr 2021 01:51:06 +0200 To: Proxmox VE user list , Dietmar Maurer , Geoff Seeley References: <1052148244.1615.1617905219488@webmail.proxmox.com> From: Roland Message-ID: <9cd163da-e7b6-f3cf-5537-f601babcaba0@web.de> Date: Fri, 9 Apr 2021 01:51:09 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: <1052148244.1615.1617905219488@webmail.proxmox.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:5aezEZLImuOOlZde18TzVE+9kQDEXm0rMIbgTnlUd0u9FLMKugG e+0g17DA6HjTjQAyQQrOHZ2+2owBkAH8yndlE9KcPs69NiWhmBk9cO0mt3gSENkgdAFJAOm Ijkfy0YflNgoa2cO9sSFC8i0oqd0dvV2xtsgsiNLzDbHP8ot2c+O5AN+ZTxcPrjNF8iQ1jn 6thoycHnXZLf+Q1x9xFyg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:JIa53LZT2U0=:0cGffclGV/h/DuRPnRBu2P 2D9dAWfy0mfW7sW05hsbesF1KfuNr8f+5RGY6hcp4prq4RVB21Bk0Lus1DwzuEoSwxpiUdCwX elHTxMWrYO7c7t7p+H1gQiHRB2qKgkF4EoTP0nDb3/4oi9rpb/W/MNA8HcBYEKAvDrrVh+tB9 C7YGW9hmOskEdCfLf3JolOBlT6G6lemk0XQ8+EJD1Jhae9PGbEXMfRxRM0IQTBNTKXSrEnHG8 d6hYZGhpwGBHhSTkkAbrT8UrDp8uAjte2jNf3QAgjGf/sInpYD9zBW589nFl3IdxKJr/N2/Z4 fL6cGe7LrfPbenJras0eYMBfD384h68czZaBVNRtXjQVIcLUeTKIJSH3zMOAbbOLbxdT90prz 0Vk7irwAxa9Cahtq1VbV17hW7r+TdL+FHoa44FXJJlDo6wZd+GZZcwKxUwWs2PLm5O8TjR1E9 GYFkbeBS86gjg/wYUjRgfxzzWTug2dJFcaSnxT0SEL9KdWLtrcaLHXH7lxqAe4liOZ71/BEav lmm8o0LveBx3IFuPPwajhyZujTHIZ5ja0lx8FTor6XaVVRcgC7qhNRD+dKmmVt3ht5w4pg1g9 dJQ2vs1pKtxW0Q91+jnP9D90XqJWVnvaY49Vr62c8Zy8JZib/PqCtY2TUMT73+yoQFfbYihJ/ 7HuYXsUuln5UMPZSRgUTF8wYdGuw9vcncTWtDuPGs97RNHqVUtRB/cH6uVC4jLkDTjEyqRT5I wzQ1hcFRHXsXodobeP4Z2vrqIQXoJqgL6apMslaGbUsIhXLJORsvdPEdkhzAdJufjNFp4n4TX MBTLEeuVs8UYzExfWG8ajtbwnNb9gzvyz0qNs78/0OBRdOm+zescBcroIpgvp2Yn7hwgisoCg ImYE97ffJKPnvWrAVk2zBbLPk2//I2jKD4SOGgPQzp5usdD+dLY/uSnNE8+TKhEQzz1+TC9hZ wgMm4s+pwOpiTS+b9RJEOpOKt2qiJi7OEyXcSEY9XRDGh69meNtvcRp+iNhRivGMfKrCF2P/6 SuMJDdQfSAflQfhgDvh5aeR/DAOy6IVLe6VWq4hBnsy3MJ07Qu8B50zTcqHJalx/zKRohK/XQ WwoaZq2IGYScKUELSkmBx3lwB+2HDt0EajMcM7SXy02uqXaLrdv3BNwBmLIH3kj+DZoSSjlW3 kgoxk1X7P6LI8IjzxLkCx5VqSdgfx2xiPJ8n45xlG6iQBJnsGKm+Oe06P1tKd8bmSCxPA= X-SPAM-LEVEL: Spam detection results: 0 DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain FREEMAIL_FROM 0.001 Sender email is commonly abused enduser mail provider NICE_REPLY_A -0.001 Looks like a legit reply (A) RCVD_IN_DNSWL_LOW -0.7 Sender listed at https://www.dnswl.org/, low trust RCVD_IN_MSPIKE_H3 0.001 Good reputation (+3) RCVD_IN_MSPIKE_WL 0.001 Mailspike good senders SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: Re: [PVE-User] PBS and ZFS Pools Compression? X-BeenThere: pve-user@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE user list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Apr 2021 23:51:15 -0000 i know that there was smartcompression feature in nexenta: https://openzfs.org/w/images/4/4d/Compression-Saso_Kiselkov.pdf afaik, it does not exist in zfsonlinux/openzfs. on my system, i'm getting - <250MB/s when writing uncompressible data to zfs pool with lz4 enabled and - >450MB/s when writing uncompressible data to zfs pool without compression regards roland Am 08.04.21 um 20:06 schrieb Dietmar Maurer: >> This is a good article on the subject: >> https://klarasystems.com/articles/openzfs1-understanding-transparent-compression/ > Can't find where the explain it. ZFS magically detects if data is compressible? > Please can someone give me a hint how they do that? > > > _______________________________________________ > pve-user mailing list > pve-user@lists.proxmox.com > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user >