From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: Re: About the Ceph erasure pool with ISA plugin on Intel xeon CPU Date: Thu, 06 Aug 2015 14:31:02 +0200 Message-ID: <55C35386.6070602@dachary.org> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="KagFVWc8VV0qeEPMvLa2OK09pdg9J5UtU" Return-path: Received: from mail2.dachary.org ([91.121.57.175]:34321 "EHLO smtp.dmail.dachary.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755500AbbHFMbH (ORCPT ); Thu, 6 Aug 2015 08:31:07 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Derek Su Cc: ceph-devel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --KagFVWc8VV0qeEPMvLa2OK09pdg9J5UtU Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, Could you please publish the benchmark results somewhere ? I should be ab= le to figure out why you don't see a difference. Cheers On 06/08/2015 13:25, Derek Su wrote: > Dear Mr. Dachary and all, >=20 > Recently, I found your blog show the performance tests of erasure > pools (http://dachary.org/?p=3D3042 , http://dachary.org/?p=3D3665). > The results indicates the write throughput can be enhanced > significantly using Intel xeon CPU. >=20 > I tried to create an erasure pool with isa plugin, reed_sol_van > technique, and k/m=3D4/2 on the Intel(R) Xeon(R) CPU E3-1245 v3 @ > 3.40GHz machines. >=20 > However, the results of the rados benchmark showed that there was no > any difference between the jerasure and isa plugins. It seems very > strange. >=20 > Do I need to do other configurations in addition to only setting the > erasure profile? > In addition, how can I know the erasure pool is accelerated by ISA > plugin exactly? Is there any command I can use? >=20 > Thanks, :) >=20 > Derek Su. >=20 --=20 Lo=C3=AFc Dachary, Artisan Logiciel Libre --KagFVWc8VV0qeEPMvLa2OK09pdg9J5UtU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlXDU4YACgkQ8dLMyEl6F23qswCgtZu9Bx9RJO1ZGzYjdjM6SnhY f4QAn0vAgzuFxrjXxhzL8MUbuTDNN4fG =SmTD -----END PGP SIGNATURE----- --KagFVWc8VV0qeEPMvLa2OK09pdg9J5UtU--