From owner-freebsd-current@freebsd.org Thu Nov 26 00:10:46 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 49ECF477C0E for ; Thu, 26 Nov 2020 00:10:46 +0000 (UTC) (envelope-from tech-lists@zyxst.net) Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4ChJ7T0RHkz4ds5 for ; Thu, 26 Nov 2020 00:10:44 +0000 (UTC) (envelope-from tech-lists@zyxst.net) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id D497F1BA2 for ; Wed, 25 Nov 2020 19:10:42 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Wed, 25 Nov 2020 19:10:42 -0500 X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrudehuddgvddtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpeffhffvuffkgggtugesghdtreertd dtvdenucfhrhhomhepthgvtghhqdhlihhsthhsuceothgvtghhqdhlihhsthhsseiihiig shhtrdhnvghtqeenucggtffrrghtthgvrhhnpeevgffhffdtfeekleelhedtjeelvdfhvd egieejveffgfduvdfhteegjeeujeeuieenucfkphepkedvrdejtddrledurddutddunecu vehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepthgvtghhqd hlihhsthhsseiihiigshhtrdhnvght X-ME-Proxy: Received: from rpi4.local (fws.zyxst.net [82.70.91.101]) by mail.messagingengine.com (Postfix) with ESMTPA id E79133064AAA for ; Wed, 25 Nov 2020 19:10:41 -0500 (EST) Date: Thu, 26 Nov 2020 00:10:40 +0000 From: tech-lists To: freebsd-current@freebsd.org Subject: possible usb3-connected hard drive spin down causing lag Message-ID: Mail-Followup-To: freebsd-current@freebsd.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="oXU/D8KvidHymqLE" Content-Disposition: inline X-Rspamd-Queue-Id: 4ChJ7T0RHkz4ds5 X-Spamd-Bar: ----- X-Spamd-Result: default: False [-5.70 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[64.147.123.19:from]; R_SPF_ALLOW(-0.20)[+ip4:64.147.123.19]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[zyxst.net:+,messagingengine.com:+]; NEURAL_HAM_SHORT(-1.00)[-1.000]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[64.147.123.19:from]; ASN(0.00)[asn:11403, ipnet:64.147.123.0/24, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_IN_DNSWL_LOW(-0.10)[64.147.123.19:from]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[zyxst.net:s=fm1,messagingengine.com:s=fm1]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[zyxst.net]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[64.147.123.19:from:127.0.2.255]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Nov 2020 00:10:46 -0000 --oXU/D8KvidHymqLE Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I have a usb3-connected harddrive. dmesg shows this: [...] da0: Fixed Direct Access SPC-4 SCSI device [...] running current-r367806-arm64 I think it might be auto-spinning-down or auto-sleeping. It's making initial interaction lag of 2-3 seconds. Is there a=20 sysctl or something somewhere where I can tell it to never=20 sleep? Or is that something I'd need to contact the=20 manufacturer about? Or is there an alternative strategy=20 like tmpfs. It's not a "green" drive but I guess it might be "green" in that it's usb3 powered. I have vfs.read_max=3D128 in /etc/sysctl.conf zdb has ashift=3D12 In case it's relevant, the filesystem on the disk is zfs. Once "woken up", inferaction is quick, as expected.=20 thanks, --=20 J. --oXU/D8KvidHymqLE Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE8n3tWhxW11Ccvv9/s8o7QhFzNAUFAl++8nYACgkQs8o7QhFz NAXGCBAAn9ArO+8vJM7rPsUEm1wZQeYTI9Xdxe56hOj9/MyvhH/NvbgS6MQUL0J4 LhgXlZGtPWMIK4oucE8vWUn8mA7pXB5pdlxy0ZjJEvK8iFaHk+FUkg6S/S5cRX/L tSj4btKaPRedxDn7af8EMZkVKHuqWdCP1tpvKl5exacS7gSPDS4Q0RLjsYg8Asog K7ftK9jggoGnIK+Yiya+ovvbl07I/jrj9PKhGjhzOo3n/USfsEBdck6SuW4H9+Ct YZaVkN7IcIVWuLNSkNbyTm3GP53S+IIjqNiL29OXSdgAB52UZ2WNs6tDtGY93Ee/ 4xBKlsc10Sje4zL/hsRyaIyjlxsV5WKnuOGzX/iWoIwCCGbj23UDfnWZLQjQUAeg YkIPQax9UmZ1S6rJoQo269XHdyc31kModA1BvTKxYY2lfjxSkhmyLgRC30lLtz9w Pb/OmttarG+e5F4YkwEd6cGBon7Yvi9oty9DqVPCGOQ5swljSiYAJvqO6OETDVA5 Jv9G7IhXXp06LQhER4QGGl5n76+Fnxfvn11Wdt/sTKlXPpCLgyLe7jsUSQlRoUJd hEO4Ve5pB88rLt2/liF9Q4rCD59uXMnvZsjSQUrvB4OgGwnlS0a5FiUz6rO+2UdF T3VCxJaxUWiWHu33IhUlWfDWYYXwM0YVX0Dwo/AWCqXR+IBh9Uk= =pUhE -----END PGP SIGNATURE----- --oXU/D8KvidHymqLE--