From owner-freebsd-fs@freebsd.org Wed Jan 4 18:48:29 2017 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 8394CC9E6FC for ; Wed, 4 Jan 2017 18:48:29 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: from mail-qk0-x233.google.com (mail-qk0-x233.google.com [IPv6:2607:f8b0:400d:c09::233]) (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 3E9AE1F54 for ; Wed, 4 Jan 2017 18:48:29 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: by mail-qk0-x233.google.com with SMTP id u25so404682378qki.2 for ; Wed, 04 Jan 2017 10:48:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=yC205P3STjBcf03FnH8/EZLcAeApkd9s9C+fdkLg7yo=; b=XhVeJRGem8rdKExmMSiOtzpPUfxmq4V1YrQ1ot6RAPvl3zautacfNOZMTIbOm850h4 g5+1CJsBpPKbVqf4VaCxjOrHSkYHNR5Um5OrYDLYf1XC7jkOG5fTwdXTB+7qMXdvlhbK ANUH6t2eAUzCpgs6Ky6rxKf2bnakFCX05wHN1R0DajFEV57KTsLZ1+KNZVbNDPvn2SH5 KWCAVtUSsI0L9eQhkuUzscEQwevpzSD0glcEBzi+pCf2fWLJAj5NMYO0M2oRc4uaCjUx WGV6cMKQlxpO+9M6s5NxBW2MQxH878bKJsWYn9rXJcZHroAyns/29G05JOguMDWsnFAy Jwsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=yC205P3STjBcf03FnH8/EZLcAeApkd9s9C+fdkLg7yo=; b=Mao+dvNpqqk/Zia1yPuScwzVLaYh/NIbR7+qcL+aZQagBYmBH+gqeZ20kD/fH1Mh3T 6dWd/cNcg+WTVlgdUm7rIDKAKNLc8tgqbt6IZLDNW/0SZnNnr9h09mLspD4hCjpukL6E gituej6mR56sLxVpd1e0wAZlRwiul7ZXvwO1LXqn920k/53rovZrLwPfJTQfE5jGhdfU OuJm8LNh1rYgdjYdxLOVoPibSY8iOOYI5EYWY7/HIEg0vYQIWbGFWfL9s/tmTSPXJl4A i+x/EhwNtbTDJ1AfWUrUSjPbFN3Gsv435YDVxuzLtKGw38VRFhVqqwrVJ7XeNHwFIDFz 2jKg== X-Gm-Message-State: AIkVDXJCg6I0RAbrxsEHtrQQDeA0AuyAqoeuy0q93HnNlPQH9zLRytHQ3n2U2WgICUdk9VYrAvEXV7tlcf169w== X-Received: by 10.55.183.197 with SMTP id h188mr72862934qkf.107.1483555708417; Wed, 04 Jan 2017 10:48:28 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.165.161 with HTTP; Wed, 4 Jan 2017 10:48:28 -0800 (PST) In-Reply-To: References: From: Freddie Cash Date: Wed, 4 Jan 2017 10:48:28 -0800 Message-ID: Subject: Re: Check status of background destroy To: FreeBSD Filesystems Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2017 18:48:29 -0000 On Wed, Jan 4, 2017 at 10:43 AM, Xin LI wrote: > Try setting vfs.zfs.free_max_blocks to 100000 (this is an arbitrary > number, can be larger, limits maximum blocks being freed per txg; see > https://svnweb.freebsd.org/base?view=3Drevision&revision=3D271532 for > details). > > You can inspect the progress with DTrace by looking at zfs-dbgmsg. > =E2=80=8BForgot to mention, this server is running 64-bit FreeBSD 9.3-p5.= =E2=80=8B That sysctl OID doesn't exist. =E2=80=8BFrom the sounds of the comments on that revision, this would proba= ble be a useful feature to have. I'll have to see about upgrading this system (there's a separate pool for the OS), I guess. Which FreeBSD version(s) include that feature? Would 10.3 be okay, or would I have to go all the way to 11.0? Hrm, maybe I'll play with an updated mfsBSD USB stick instead, and see if things work better with that, first. Thanks for the info!! --=20 Freddie Cash fjwcash@gmail.com