From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Mirroring seek optimization Date: Sun, 24 Aug 2014 12:45:36 +1000 Message-ID: <20140824124536.5f132895@notabene.brown> References: <4CE5B469-1F8B-4F66-8993-8A752CE08420@k9heritage.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/9PSH979eCSnUxpnZL2QcFgU"; protocol="application/pgp-signature" Return-path: In-Reply-To: <4CE5B469-1F8B-4F66-8993-8A752CE08420@k9heritage.com> Sender: linux-raid-owner@vger.kernel.org To: Robert Long Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/9PSH979eCSnUxpnZL2QcFgU Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Sat, 23 Aug 2014 17:51:09 -0700 Robert Long wro= te: > Hi, >=20 > I don=E2=80=99t know who to talk to, so I thought I would start here. A w= hile back I developed a further optimization for speeding up read access in= mirrored disk arrays. Testing reveals that it achieves about a 7% advantag= e over the current implementation. I had considered patenting it, but I fou= nd that there is an existing US patent (7,330,930) that is broad enough to = cover the existing Linux mirror implementation as well as my improvement. >=20 > Any ideas regarding who to contact regarding further discussion of applyi= ng the improvement would be appreciated. >=20 > Bob Long Post your patch, test results, documentation, anything to this list. That would be the best way forward. NeilBrown --Sig_/9PSH979eCSnUxpnZL2QcFgU Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIVAwUBU/lR1jnsnt1WYoG5AQJfKA//SMG3BB4BMT1pSaOHHQTmV/2dFPn1Su9o mpcAQ4uor09stbk68NclvnvTNgU20G7S5zdZhOOXwspv2jdK+WwbjwAwfSa3PuFu vmpWhKos+DhvlIwE/RexkHv+DWodtVxoNA2yjYySSiwh7pcSYW6ruSXD0CsGJY9Z IWnusbuQP4Ac5VV9BPtB04onCC5K8bI1M9C+7xzO7IaArGzgrJJgagxDHM+uZuPC Z7pOx/w9pLNgiJyMjLUgeWmFcdllMK6zfxr+C6L6GT3x02YjIgNgzhSyo8BQTE5x yGQpL7P6cjw+ySB19J7MDRHjRFFoq8h1M+1b6WvRUUoNri9jwSnwW9yBjP35QkxP UKjk9IylS8+PgXsDCiAQyIfySfWzg5rQPcAZoQXpW1H99qB3RBgkvUCAMeUYqvP6 6awYZP5EqyENwrEynSDwf6ZbpFjkZW/So3lLh2m403KUZxG/xKCvmIQG9DySnA6L VhHyfDZOw1Kg+nx+x9t5tZQp7xjULPLhkD9K256oxlwDGwHvNr+zhc0BtaH5bpkI 8REeH8/eVssdhZ9Qp0xjTSKVZiCv9HqDbWocPd4mj25TjTsqnjS3d7MsExkenTcf WRtSU6ZkfZd48LEM3UQ6UcWUezDFa4TdXp8sqopDSl07UTJ/QWUjYOje2NZTtxWn ivRyL1bH9e4= =Zfl+ -----END PGP SIGNATURE----- --Sig_/9PSH979eCSnUxpnZL2QcFgU--