From nobody Fri Nov 15 16:30:54 2024 X-Original-To: freebsd-fs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XqjFT2N3Bz5dKW5 for ; Fri, 15 Nov 2024 16:31:09 +0000 (UTC) (envelope-from jdavidlists@gmail.com) Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XqjFS4hDfz4Jd7 for ; Fri, 15 Nov 2024 16:31:08 +0000 (UTC) (envelope-from jdavidlists@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b=iPqcE782; spf=pass (mx1.freebsd.org: domain of jdavidlists@gmail.com designates 2607:f8b0:4864:20::102d as permitted sender) smtp.mailfrom=jdavidlists@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-pj1-x102d.google.com with SMTP id 98e67ed59e1d1-2ea08667b23so1620754a91.2 for ; Fri, 15 Nov 2024 08:31:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731688267; x=1732293067; darn=freebsd.org; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=7yjPfP23E1ybWGN9jNxitVBh2wpbRzOI583ZslGMwAE=; b=iPqcE782S/EbkmR2yOL7l2Fi7clXWAmRC4ndvu8IxHE9Rdw53UFiJp4pElMy5BxO4z J6HzcKf6EI7ZmHJlIooR3gV6Hq3t31nBVx3LF2WINRaU60ZjCWEwcDJebIiBv9rSwHeX e+y9L3lRyy9+H7F7M6NsDn1Ii8bdS+ql4EH+jdMPga4PZ/SamWIOE1TfmpIq+SbkOIuK pYbJsoHOTQoLtljv8jDw5c9A1SXopE/vyrWtagmthvYPREs7Zp4Drtrot6lUTTKuW3SL i2ebQBBVwqnNpO/FPwSk/ypnDdV+5k/a3eEJ0XC/dkz1dWZsYDaUai6YlMLtPzMb/wOU MOgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731688267; x=1732293067; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7yjPfP23E1ybWGN9jNxitVBh2wpbRzOI583ZslGMwAE=; b=dnkDOPJBKAmgMWfmZrHeHYJ8tfhFcXXYtvDEqO50tH3384WGpN1yxyzQmGoGPbOE+z QUOB2SqLZDjlPEqD/Mn+t0WRqizEkchigodTYZa50fMvPhxMa+gwZ+K/rJspRDCIr2XO 7dYxqxxVHuGAn9ZrbM+VkpZq9wym3buUL0L9+ru5Z/NBSTBVFWZ9u+nPhaTJ9aj0DGQA 1LpbjQyeHNH0dVlmTzIFLTBovfBkWgAjc1L+xUVhvfpk7DTuRIrF1246EofXY/SZ26S/ uJONPmrhsjUvc/RL60F9lYh4AgfWELvFB1rDMGxvfQHHyAeF2Me+jISivMggUQ5VQj1D QSKw== X-Gm-Message-State: AOJu0Yyqek5Lv7lzhNiotWrccnWrRcoR4E+H0RAx72xASUU5pkwZkHAl HDqMUixW1+KoCxMtaeBQn4LSB+kmtYMqVqn+vsxsKhuvArOf7XRe8FTR45p4TNmXZwZUdSq7ncS ltt7JEBbsDPZrRyMP6C5NgxUr5BV8aQ== X-Google-Smtp-Source: AGHT+IFwAdF2QNmAr5U0MjOKViRdmOHk/rvh5nOCKBmx6jd4pBSx27nFXw/skam0GNf2GL1X9bZvFrr8mVh4bQ/B/Yo= X-Received: by 2002:a17:90b:4c52:b0:2e2:cef9:4d98 with SMTP id 98e67ed59e1d1-2ea155a23bcmr3565408a91.25.1731688266798; Fri, 15 Nov 2024 08:31:06 -0800 (PST) List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@FreeBSD.org MIME-Version: 1.0 References: In-Reply-To: From: J David Date: Fri, 15 Nov 2024 11:30:54 -0500 Message-ID: Subject: Re: improving nfs client & server performance To: freebsd-fs@freebsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-3.29 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-0.29)[-0.294]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TAGGED_FROM(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_TRACE(0.00)[0:+]; FROM_HAS_DN(0.00)[]; MISSING_XM_UA(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; MID_RHS_MATCH_FROMTLD(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MLMMJ_DEST(0.00)[freebsd-fs@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::102d:from] X-Rspamd-Queue-Id: 4XqjFS4hDfz4Jd7 X-Spamd-Bar: --- On Mon, Oct 28, 2024 at 7:41=E2=80=AFPM void wrote: > [1] context is root creating a tar on a nfs mount. The tar is huge, > over a Tb, [...] > [2] The SMR hd FWIW, writing extremely large files is pretty much the worst-case scenario for SMR drives. > it just gets *very* *slow*. That's what SMR does. > It's zfs, but single disk, 8Tb. Perhaps I'm overstating the case, but I believe that using ZFS on SMR disks is strongly discouraged. I haven't tried myself, mainly due to the horror stories I've read. Stories that sound a lot like yours.