From owner-freebsd-fs@freebsd.org Fri Sep 2 16:15:27 2016 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 201B9BCDAD9 for ; Fri, 2 Sep 2016 16:15:27 +0000 (UTC) (envelope-from ben.rubson@gmail.com) Received: from mail-wm0-x241.google.com (mail-wm0-x241.google.com [IPv6:2a00:1450:400c:c09::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id AA705D50 for ; Fri, 2 Sep 2016 16:15:26 +0000 (UTC) (envelope-from ben.rubson@gmail.com) Received: by mail-wm0-x241.google.com with SMTP id i138so3464758wmf.3 for ; Fri, 02 Sep 2016 09:15:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-transfer-encoding:subject:message-id:date:to :mime-version; bh=AkKCLTVrrU5MkCMTcm58nDounMkK/QY1XHRwnxbxjlc=; b=cRowdlUR1wd59o2jg7T5NH/7PYvUxm4qFhLne75O0TglRIT+lg4UKpRTYiN+O+FGrX BwSNOWx6FbWx2hwny4aZ4C4pLmAaU4ifpp30BASBb/s+AHYVYSp/IsXY+rSaPe2Jhe5k FYNqnYKAYKG+68nDJpZFilv6smIxutTwdwGzTR2TFskwfdIZAJGeRM1m3EuFrGPNEzec IMsVmFDSv3aV97CX2enyS1fCnec9aUaLJVD3itaOR2mZktRZtB+itNsh/qVvCPuf0WrV rWvq74Hkmm1OsynXPO4a0oXsBgpQ2kIAFJebaXobvVjkM2FonOAv0T91iWVcnjihXXDd ikWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-transfer-encoding:subject :message-id:date:to:mime-version; bh=AkKCLTVrrU5MkCMTcm58nDounMkK/QY1XHRwnxbxjlc=; b=WiyzeZ8Zkp1JWKall4hnn6l8RHSdheuLDBUVkpxobtbVLRgu30vLCO28bSxUlqzwyd xESSDEvuUqYQcebFMkzpIh3VcE9TYOu7bjfxo5TEK9CPQGC5gUzzXum4vmU8h7YeBq0s fjuIObLLeoYJCXwaJypwMQrBq7iuxZEWtFqQwGe/8A1Z97QxI6548UfwFTLSuGCjsh0+ jvpbU5SG66CS1gy63xctYOofnamtGFca4AGMq3namSxBBRCBcpJcikJPMRHJ8qWfBTDM QIP+ON3vdMRWR64gevsYjmo+jVt4eZPTlrcqGkO5VrLlWyS9k2biXhLEbY6GNuia83vC Tdcg== X-Gm-Message-State: AE9vXwOmpTppXhOSmrsYocm6G7MdQB8P9DMAhyELYTZt+6zQkbv2AJ6RhssXZ0t4ss9fYQ== X-Received: by 10.28.158.142 with SMTP id h136mr3954001wme.10.1472832924795; Fri, 02 Sep 2016 09:15:24 -0700 (PDT) Received: from macbook-air-de-benjamin-1.home (ANice-651-1-362-61.w83-201.abo.wanadoo.fr. [83.201.110.61]) by smtp.gmail.com with ESMTPSA id kq2sm11137776wjc.41.2016.09.02.09.15.23 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 02 Sep 2016 09:15:24 -0700 (PDT) From: Ben RUBSON Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: [ZFS] refquota is very slow ! Message-Id: Date: Fri, 2 Sep 2016 18:15:23 +0200 To: FreeBSD FS Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2016 16:15:27 -0000 Hello, When I set refquota on a dataset, write IOs are done very sloooowwwly = some MB below the limit. And I can't manage to reach it, dd (used to create a file to fulfil = space) seems to stall. No problem however with quota, dd goes to the end and returns with : "Disc quota exceeded" Any clue ? I would have been interested to use refquota to avoid impacting users = with snapshots'fs space, but this option is quite unusable as is. Thank you very much ! Ben