From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-f176.google.com (mail-qt1-f176.google.com [209.85.160.176]) by mail.openembedded.org (Postfix) with ESMTP id 85FC07CAE1 for ; Thu, 21 Feb 2019 14:33:11 +0000 (UTC) Received: by mail-qt1-f176.google.com with SMTP id a48so31686682qtb.4 for ; Thu, 21 Feb 2019 06:33:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=konsulko.com; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=jduk0gHPiG3Wz7g8sxEyiW07I3IOYILwekn56/WhzMg=; b=TXEAcGCyUNTX3In1OSYfHZyXCdCxYwgmEFYyLiRVscB696/5tV91HTSghSBBWdzwbD PwV+43jFdpSLi/xq0BmnUHl6DMu2CEmWR3JmGfnGyF8yk+G6hv/PNYWL3EQmiJa2AGFC amIqReiMMh4SxqFzRQ7WIS+JeC2pCaJ1okOvo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=jduk0gHPiG3Wz7g8sxEyiW07I3IOYILwekn56/WhzMg=; b=FcTrtMWREq03ty3DK90yr20U6K5C8g9xhpPtaI6Ud8FDtT7M//7HnD1oyJFKcixjDg wnLbxmHfF0WOJ/SWcC+8a7SapNXeV+BxNhEW2e0bbOY+s3k8y1gCZIlhjfrwUUl78wLV AX4BIUoRffoVuQxoJOZS3QstJG8GQBBgDxe1i6iSZBwS4mmIwqWmhwH+6Dj299PFnlw4 DH1Re1M8jz5aYJebO5WA5hkgPSWlG++Tg28u1di/SQwXbMwFay+HcFNu8L7I1oU0vLEG erbM38cwPsnR0JkguMo+Sg6LqAKu+dR96Lg83Zx4JjbPYXSHs2AMotNz/pydROnf2GCR hhEw== X-Gm-Message-State: AHQUAub94VxhVIob23E57e9uocu3dpaDQ9FEsHgeSUnsgEGIBXO8LdpN cEsGu8WYyKkNGDdRYGsssICvjg== X-Google-Smtp-Source: AHgI3IZRPuwCY3VHS5WGGOblhav6buHtg37oq0hwaU4a/c1ui1RAwe8/v//2yyALW+PWoEIdmTAJjQ== X-Received: by 2002:a0c:b90d:: with SMTP id u13mr29168434qvf.66.1550759592165; Thu, 21 Feb 2019 06:33:12 -0800 (PST) Received: from bill-the-cat (cpe-2606-A000-1401-861F-6911-836D-B65B-3E93.dyn6.twc.com. [2606:a000:1401:861f:6911:836d:b65b:3e93]) by smtp.gmail.com with ESMTPSA id p9sm13313799qtp.50.2019.02.21.06.33.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Feb 2019 06:33:10 -0800 (PST) Date: Thu, 21 Feb 2019 09:33:08 -0500 From: Tom Rini To: Mike Looijmans Message-ID: <20190221143308.GC12379@bill-the-cat> References: <83ec17fa-88b0-04fa-adab-b402b10c6339@topic.nl> <5d6f25cb-e7fb-8306-5a6e-afe497620b9a@topic.nl> MIME-Version: 1.0 In-Reply-To: <5d6f25cb-e7fb-8306-5a6e-afe497620b9a@topic.nl> User-Agent: Mutt/1.5.24 (2015-08-30) Cc: "openembedded-core@lists.openembedded.org" Subject: Re: wic creates ext4 images that read really slow in u-boot X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Feb 2019 14:33:11 -0000 X-Groupsio-MsgNum: 121465 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="17pEHd4RhPHOinZp" Content-Disposition: inline --17pEHd4RhPHOinZp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 20, 2019 at 10:55:20AM +0000, Mike Looijmans wrote: > >>> I am aware of two fixes for U-Boot. I will look them up, and reply ag= ain to this thread. >=20 > Browsing through u-boot commits, I found this gem that's disabled by defa= ult: >=20 > CONFIG_BLOCK_CACHE=3Dy >=20 > The commit is this one: >=20 > commit e40cf34a29f1b248643731a11fb1c6f0520d016c > Author: Eric Nelson > Date: Mon Mar 28 10:05:44 2016 -0700 >=20 > drivers: block: add block device cache >=20 > Add a block device cache to speed up repeated reads of block devices= by > various filesystems. For the record, it's not that it's disabled by default but rather to enable it, you need to enable other "new" frameworks and so forth. And at least for "legacy" platforms, there's a certain level of pushback against doing the work required to enable that (as to be honest, it is more than just enable a few CONFIG options and re-test). A counter-pushback of "but it enables things that fix some bad performance problems!" would be really helpful. --=20 Tom --17pEHd4RhPHOinZp Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJcbrajAAoJEIf59jXTHXZSzWIQAJIk92Wr3l7bIYB6BPS70jrH kgfW27XUFE91Y4PfAf7pmBC6sph/l5Z8E5CAXDYsp8px4e8tGBJe9fjUQh9ckEMA z+JsTAt+hMOA6L1MW0She98Nphtq9FkkGOqcz5LpjRIHuE79m/anKaJrGUgPFo/p uEleQci0DniPczkG/dRXY+Z9kPqm3xe1nUb69w25oWm81vTDw2wXGNdMgKDWToes KVuy2k1yemWuT/8IMTgcziv4zL5NczF7ghritRCCi5MW5GE8HQ/Ft8Z29hi2oIOm ecAslcgtEQEce1KHlfbzpnySC3Nf1FXhver8VWdggOPd4f1ia761FSfPZavOhEg8 z5Qi/chbFeQZK0PhQ0821i1o0R5cBRx8ouGRVBASHkMTmC1vtPPx801q1+AkJAL7 hHpAe8bNwa1bd5Nz6a4Ji3nSDiEZtXr2BHCmaMvjw60TI+fn4pr/cweXLQzbTFe9 Jtc35tti9tLqA+PL+PzE6wqRDAUP69Gk/oQTXe7EFxjJvidamMuC8AqoP+9lF7gC rx92jZRl56/5p4yuAlHxfYyHsVvb3aJoYdcFD4cbPmtCWroDS03ITk5EL5KF0sAQ HQ4cF+atRah9ABSQbkBO9aS5I9c1Zgz7x4t4pZYcFzP7PscJRkbfJzrs3pWr1Q/5 BvSU7OiOKD3aBAfHjFwA =G5Am -----END PGP SIGNATURE----- --17pEHd4RhPHOinZp--