From nobody Thu May 27 13:09:54 2021 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 95B0FBF367C for ; Thu, 27 May 2021 13:09:55 +0000 (UTC) (envelope-from mike@sentex.net) Received: from pyroxene2a.sentex.ca (pyroxene19.sentex.ca [IPv6:2607:f3e0:0:3::19]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "pyroxene.sentex.ca", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FrSpW3bCzz3P0C; Thu, 27 May 2021 13:09:55 +0000 (UTC) (envelope-from mike@sentex.net) Received: from [IPv6:2607:f3e0:0:4:ec3b:32c8:2dbb:1f26] ([IPv6:2607:f3e0:0:4:ec3b:32c8:2dbb:1f26]) by pyroxene2a.sentex.ca (8.16.1/8.15.2) with ESMTPS id 14RD9sua047755 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Thu, 27 May 2021 09:09:54 -0400 (EDT) (envelope-from mike@sentex.net) To: Steven Hartland Cc: Alan Somers , freebsd-fs References: <866d6937-a4e8-bec3-d61b-07df3065fca9@sentex.net> <17763650-53b9-c2af-e14e-5d66f6ae69a1@sentex.net> From: mike tancsa Subject: Re: speeding up zfs send | recv (update) Message-ID: <56a05357-6fb7-fa77-98a2-8ea8d3b07fcb@sentex.net> Date: Thu, 27 May 2021 09:09:54 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.2 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 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-Rspamd-Queue-Id: 4FrSpW3bCzz3P0C X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N On 5/27/2021 5:00 AM, Steven Hartland wrote: > With spinning rust that has other things processing your seek times is > likely the limiting factor. > > Have a look at gstat -pd while the send it happening. > > Thanks, I think I am just running into the limitations of the rusty hardware.=C2=A0=C2=A0 I do notice on my other pool which has more spindle= s with a pair of vdevs, its a bit faster on the sends.=C2=A0 Perhaps adding anothe= r vdev of disks will help squeeze out a bit more performance for now. =C2=A0=C2=A0=C2=A0 ---Mike