From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jim Kukunas Subject: Re: [PATCH] lib/raid6: Add AVX2 optimized recovery functions Date: Fri, 9 Nov 2012 11:56:10 -0800 Message-ID: <20121109195610.GA2928@jtkukuna_gentoo_sb.jf.intel.com> References: <1352411264-5156-1-git-send-email-james.t.kukunas@linux.intel.com> <1352460945.4387.7.camel@mattotaupa> <20121109225025.13a846ca@notabene.brown> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="pf9I7BMVVzbSWLtt" Return-path: Content-Disposition: inline In-Reply-To: <20121109225025.13a846ca@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown Cc: "H. Peter Anvin" , Paul Menzel , Linux Raid , Linux Kernel List-Id: linux-raid.ids --pf9I7BMVVzbSWLtt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Nov 09, 2012 at 10:50:25PM +1100, Neil Brown wrote: > On Fri, 09 Nov 2012 12:39:05 +0100 "H. Peter Anvin" wrote: >=20 > > Sorry, we cannot share those at this time since the hardwarenis not yet= released. >=20 > Can I take that to imply "Acked-by: "H. Peter Anvin" " ?? >=20 > It would be nice to have at least a statement like: > These patches have been tested both with the user-space testing tool and= in=20 > a RAID6 md array and the pass all test. While we cannot release perform= ance > numbers as the hardwere is not released, we can confirm that on that har= dware > the performance with these patches is faster than without. >=20 > I guess I should be able to assume that - surely the patches would not be > posted if it were not true... But I like to avoid assuming when I can. Hi Neil, That assumption is correct. The patch was tested and benchmarked before sub= mission. You'll notice that this code is very similar to the SSSE3-optimized recovery routines I wrote earlier. This implementation extends that same algorithm from 128-bit registers to 256-bit registers. Thanks. --=20 Jim Kukunas Intel Open Source Technology Center --pf9I7BMVVzbSWLtt Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIcBAEBAgAGBQJQnV/aAAoJEJsd5ffp0QqM2XUP/jZyf7jP4PxivCI83+QYG1FT 1UCEfsmvv04I8Rs9cyoZREUKNH9vbnMSt6dlOQ58PjAS+AxEORRcaujt4tNiWd4T vbY3ov78XvgIpf0DIFuLGJA3ih1H0Wx0tUXN72RsRmbaSpnc4ZDGvqTLy8QtFQv/ TiSjCruef7Y2XaLopJ4Z+NHbc1QNhsudzUJqOLdmlNzfgd6PMZejWZpaU1aQQKAs oXSse1dR18S52Ci486dvpKgV2PJi4FAJttdsKvcvBIRvPXWpM1SIJgUhtAZTPyv5 g5EiEiwShhOD0Xlnhb6ZPuJzAi2N9+uXPWBaKLid2E9vB7sPZ/iMuECjRhkErbIj WYnmTB42DW84kWqL5p5vtuLHTze8LTjgOpGOa9Wo9IFrAhBK70cyvb6348AlnJVY SQ/dJVL2SlDtZCQ8I7ZaNnbvDct8UjBy4c1ELIL69uUsqxK+/G/eOtE9wdEGbyW0 DZXrWw0Wm+bRvYJZcTgW2izOSv///+VWWDF/V179LKODAoJR6jcUHIRblM8XahKQ 4t6+p5wNOGDQxZApcKegfb0q3aGpNWT1/uR80HKBlrHc4GazWsGsk6YDYVQeSRCj OCZQX/DN3ZJ5628vpNqneyywyPOOvTl0AZlspmDXJFjBq8qr8mSs7ykSphw/EbVo Su5PDKozV98OxA6u4Pb8 =e4b1 -----END PGP SIGNATURE----- --pf9I7BMVVzbSWLtt--