From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 615FAC43603 for ; Sat, 21 Dec 2019 06:27:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 318E0206EC for ; Sat, 21 Dec 2019 06:27:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=colorremedies-com.20150623.gappssmtp.com header.i=@colorremedies-com.20150623.gappssmtp.com header.b="krJvPWPp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726736AbfLUG1U (ORCPT ); Sat, 21 Dec 2019 01:27:20 -0500 Received: from mail-wm1-f46.google.com ([209.85.128.46]:50721 "EHLO mail-wm1-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726098AbfLUG1U (ORCPT ); Sat, 21 Dec 2019 01:27:20 -0500 Received: by mail-wm1-f46.google.com with SMTP id a5so10984651wmb.0 for ; Fri, 20 Dec 2019 22:27:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=colorremedies-com.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=QopNmazyFSOXaNApJty4US1ohbDt91Fw2CxTiz8hEaY=; b=krJvPWPpayAKXZSqgvHzwEg7iY23/95QyiPfKK5OTYllAbahRWoKSJqLketBD+HjnX QwmmSeEodLiB075gjgOjh5LaX2X5kzF6vNzLqEvrv4FxiIdfqsoEau8u8Qc2pfH4NXMd bgsKNnYPlkvvjNeSpJC0qY32xOxArzj0Mu+wODLuXY0zGxCefJQ4CHCYarnXwF5H+EdC seueOiPwk0m5ftSxdLF0gyWCXyUveT3Xoy8PS8kd/NVK2FTijmWy4g2sMccSFO19MzSm ks/bnoVmti/7H4kdiIDHY3LCOFiQzogeGovN5VC8UFzKipQ8dxXCmKqtGZXvdSdUdTgr acAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=QopNmazyFSOXaNApJty4US1ohbDt91Fw2CxTiz8hEaY=; b=UkFgeLuDHMUI0H04kDXp7FVzHNgUVWy7nC/nMmFhXRDbsfSybGHhIk9DA1x5wyQd0e 1NK7BsdOnyJJc40JRf/2u0yT/F1Kb5wS2WDGG6PQoERoGzmvu04ICpMWhFePuQRiupU7 L6Av+RJbjwPGNYh4jUKADZm8kjnPEBtqZKxL8DovLazpgXcCf4/go/j0Ndr6vIJ+fFwI TVGK5X/9ajOTpX2uzaPGELo+sds/y1vM36bqz5r3vQD5/oszon9uiRXn80dPAPr377xx rX/7MteY8G9LScYa5uIKkHRW5YnljqpkslQoFMfvP/Dt2ZVo02Xuuo//SNj/y5fbspP0 wptg== X-Gm-Message-State: APjAAAWJrPE47zQf7Zp0ESUZqWPrD0jG3i2HHonc1G5pPpz/mi+dylQb QC9pGUwOD3ymQi48Y9QJZNQWyOjvggFEqWpXFFtzRoLTKw2DdQ== X-Google-Smtp-Source: APXvYqwLEfv/zk/Dm5wjZRIy0GE2/7Puo5vMgur2fjYMtJNQGN+kNn6/RSOl9laWfrfJlC9LUeM+g3H0e6iruPDLeg0= X-Received: by 2002:a1c:4d03:: with SMTP id o3mr20628863wmh.164.1576909638410; Fri, 20 Dec 2019 22:27:18 -0800 (PST) MIME-Version: 1.0 From: Chris Murphy Date: Fri, 20 Dec 2019 23:27:02 -0700 Message-ID: Subject: dump tree always shows compression level 3, zstd To: Btrfs BTRFS Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org kernel 5.4.5 btrfs-progs 5.4 test file is linux.tar (not compressed), it's the only file on the file system in each case /dev/sda5 53G 2.8G 50G 6% /mnt none /dev/sda5 53G 2.2G 50G 5% /mnt zstd 1 /dev/sda5 53G 2.1G 50G 4% /mnt zstd 15 mount and dmesg both show the value for the level I've set; but btrfs insp dump-t shows extents always have compression 3. [47567.500812] BTRFS info (device sda5): use zstd compression, level 1 item 14 key (328583 EXTENT_DATA 2060582912) itemoff 15488 itemsize 53 generation 51 type 1 (regular) extent data disk byte 6461308928 nr 20480 extent data offset 0 nr 131072 ram 131072 extent compression 3 (zstd) =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [47793.161246] BTRFS info (device sda5): use zstd compression, level 15 = =E2=94=82 item 170 key (328584 EXTENT_DATA 2735341568) itemoff 7220 itemsize 53 generation 54 type 1 (regular) extent data disk byte 2168475648 nr 24576 extent data offset 0 nr 131072 ram 131072 extent compression 3 (zstd) I'd expect a bigger difference between level 1 and 15, so I'm a little suspicious that it really is always using level 3. But it's also possible that it's just a bug with inspect always reporting level 3. The rate of the level 15 copy is slower. --=20 Chris Murphy