From owner-freebsd-arm@FreeBSD.ORG Sat Feb 28 22:51:45 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6BD8C160 for ; Sat, 28 Feb 2015 22:51:45 +0000 (UTC) Received: from mail-ig0-f172.google.com (mail-ig0-f172.google.com [209.85.213.172]) (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 2EDAD39C for ; Sat, 28 Feb 2015 22:51:44 +0000 (UTC) Received: by igdh15 with SMTP id h15so8921050igd.4 for ; Sat, 28 Feb 2015 14:51:38 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=yqOTWc43/KzGapsxwcWDVTBDDGAAxIHNqIwhf7CRjRw=; b=BIRDesJ7wynUGiosLUwkN8g1amqh3ulMEP5ssPek46eytJ44PBGa4ht1GgNfsCCKSb Y8AR+Z5XKp6c5ERZrgSjJFp9AWqEcWlssI8wEZ3XYR/dVYbMtKkG6/GIBtxflOOIZCgx PC4v0jnqmh2bq9gnl1KH0RxZexVwfMsoXQTno6bocTfG4RgtlRHyCsS3OfeWbhf2pvj0 dsccUZXhE+7QaG0FabKLI90QqxZJxfNa95A9MlqJWhZkUJs25c0AX25iX6cdb7liGLWW Q0925CEoXp1ao2XudNk+OObqf43iNn7Th07e3nsKSnTg0+qZMEMt8xKMtsrchNtlju4a 0GkQ== X-Gm-Message-State: ALoCoQk/2HBBpfFhJNNThp3l4wuk8oPFIDmatHj2u7QSYM52DPWBmDzzruVr0fGvxZjE0vIwU3va X-Received: by 10.107.150.149 with SMTP id y143mr27236803iod.22.1425163898316; Sat, 28 Feb 2015 14:51:38 -0800 (PST) Received: from netflix-mac-wired.bsdimp.com ([50.253.99.174]) by mx.google.com with ESMTPSA id f1sm4095809igt.14.2015.02.28.14.51.37 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 28 Feb 2015 14:51:37 -0800 (PST) Sender: Warner Losh Subject: Re: buildworld Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2070.6\)) Content-Type: multipart/signed; boundary="Apple-Mail=_2E53C336-C36E-4155-87E1-49FB07010FDD"; protocol="application/pgp-signature"; micalg=pgp-sha512 X-Pgp-Agent: GPGMail 2.5b5 From: Warner Losh In-Reply-To: <20150228145504.4a854cf1@ivory.wynn.com> Date: Sat, 28 Feb 2015 15:51:36 -0700 Message-Id: References: <20150228011141.4138dd4b@ivory.wynn.com> <20150228145504.4a854cf1@ivory.wynn.com> To: Brett Wynkoop X-Mailer: Apple Mail (2.2070.6) Cc: freebsd-arm X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Feb 2015 22:51:45 -0000 --Apple-Mail=_2E53C336-C36E-4155-87E1-49FB07010FDD Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 So fast SD cards run about 5-10MB/s write speed, a little more read. SSDs are 100x faster than that, typically (300MB/s read, 400MB/s write are typical values). USB 2.0 is 480Mbps or 48MB/s (in practice more like 20-30MB/s), so even a USB attached drive is going to be 6x faster than a fast SD card. Note: I=E2=80=99ve not measured any of these rates from an RPi B, mind you, so YMMV. Slow SD cards can be 10x slower or worse than faster ones. Especially with UFS since it=E2=80=99s a rewrite in place FS. Thumb drives are little better than SD cards here, alas. That=E2=80=99s a long way of saying that a good USB + SSD or USB + HDD would cut your buildworld time substantially. At a guess, by a factor of 4-8 to between 5-10 hours. Good luck with your installworld. Warner > On Feb 28, 2015, at 12:55 PM, Brett Wynkoop = wrote: >=20 >=20 > mv routing_test.tmp routing_test >=20 > -------------------------------------------------------------- >>>> World build completed on Sat Feb 28 06:45:32 EST 2015 > -------------------------------------------------------------- >=20 >=20 > So it took just over 48 hours. It also proves that removing the > make.conf was the right move. Good stuff! >=20 > Now to see if I can installworld without crashing the little box. >=20 > -Brett >=20 > -- >=20 > wynkoop@wynn.com = http://prd4.wynn.com/wynkoop/pgp-keys.txt > 917-642-6925 > 929-272-0000 >=20 > I would never invade the United States. There would be a gun behind > every blade of grass. --Isoroku Yamamoto >=20 > _______________________________________________ > freebsd-arm@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" --Apple-Mail=_2E53C336-C36E-4155-87E1-49FB07010FDD Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJU8kZ4AAoJEGwc0Sh9sBEA/Q0QAKTWWPXDhU2DRl+Ti9qP90u/ ewhrsqJQrLmU73FvEYPWL/xVWNVTWAbE19Ujc1OT4ZwHWURmL35dlddmDkMG/Fhp mnHJ3aB1wCygbNUL+zCB3nDhavWzX7XHuOXpLDYT8vQjOKGzQ/4FsZzMlYHVJ1i8 FjzHqJJTiJZxk+U2InB8bgQnJNbddJaB/ywNBSBg+QtP3xm7/UigtxEyhJGW7gxi 7d61af3llr5OOJ5nmGuVz33xQtMXZcmhNlbvk0LFaTTVbEPW4TlLMgnG+iuQFRzp 8zHaI43+Jj/Kl+tGVdwGGx+yKFvpH2oAA04XCyd1kwnfktetWZQpw7FHqoPfKpHB Rqkwe/ChVZFDuyuO9TuY1SLIVPxDKYlgKzgObEGg9J+Mk07E9TiLMt/k+Sup9Zn/ UUgPSxBYvQ5gKrIJ9Gi6uuEMfa4t6oe6V2+Gjad2uQ4Rw2x57hm4AZ2p/5KK5BIB QSzeO380J03/7WLp32qykYyJSMY9s/tkfs9hrrWqZVAA5bo58taRDqYDM1BzdKHa 5RV7ykafu/NMNzXrnbTruis1VYEvILFSGnlQMV5rZwYzcWHk7lmUdVA03UUjtoHX Iu0zOam1jHARitbcuiBAUlR05cl2jQYtfL9rPoxhwi4I3tapLc1fLmCZolAPor6H gwvwR5YQ1jrCP+cNZnIL =waS5 -----END PGP SIGNATURE----- --Apple-Mail=_2E53C336-C36E-4155-87E1-49FB07010FDD--