From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: Re: Weekly performance meeting Date: Fri, 26 Sep 2014 10:56:16 +0200 Message-ID: <54252A30.8020800@dachary.org> References: <542514DE.6070807@dachary.org> <51FC7A40FB29414D88A121A7FFEF9A4710F71A35@SHSMSX104.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="cu4W6k9SHoGoLOEcI2MprBxW6wdN2gqla" Return-path: Received: from mail2.dachary.org ([91.121.57.175]:60480 "EHLO smtp.dmail.dachary.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753728AbaIZI4W (ORCPT ); Fri, 26 Sep 2014 04:56:22 -0400 In-Reply-To: <51FC7A40FB29414D88A121A7FFEF9A4710F71A35@SHSMSX104.ccr.corp.intel.com> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "Zhang, Jian" , "ceph-devel@vger.kernel.org" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --cu4W6k9SHoGoLOEcI2MprBxW6wdN2gqla Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, I added - isa : performances improvement expected ~20% [jian.zhang] to http://pad.ceph.com/p/performance_weekly . Do you have more informatio= n about this degradation ? Cheers On 26/09/2014 10:37, Zhang, Jian wrote: > Loic,=20 > Sorry for the confusion. We have observed up to ~20% EC performance deg= radation and have some initial findings and want to have a discussion. =20 >=20 > Thanks > Jian >=20 >=20 > -----Original Message----- > From: Loic Dachary [mailto:loic@dachary.org]=20 > Sent: Friday, September 26, 2014 3:25 PM > To: ceph-devel@vger.kernel.org; Zhang, Jian > Subject: Re: Weekly performance meeting >=20 > Hi, >=20 > I added a section to http://pad.ceph.com/p/performance_weekly about the= current efforts to optimize/benchmark erasure code plugins. @Zhang, Jian= : the ISA erasure code plugin Andreas Peters worked on is not mentioned = because it does not need any optimization, as far as I can tell ;-)=20 >=20 > Cheers >=20 > On 25/09/2014 20:27, Sage Weil wrote: >> Hi everyone, >> >> A number of people have approached me about how to get more involved=20 >> with the current work on improving performance and how to better=20 >> coordinate with other interested parties. A few meetings have taken=20 >> place offline with good results but only a few interested parties were= involved. >> >> Ideally, we'd like to move as much of this dicussion into the public >> forums: ceph-devel@vger.kernel.org and #ceph-devel. That isn't always= =20 >> sufficient, however. I'd like to also set up a regular weekly meeting= =20 >> using google hangouts or bluejeans so that all interested parties can = >> share progress. There are a lot of things we can do during the Hammer= =20 >> cycle to improve things but it will require some coordination of effor= t. >> >> Among other things, we can discuss: >> >> - observed performance limitations >> - high level strategies for addressing them >> - proposed patch sets and their performance impact >> - anything else that will move us forward >> >> One challenge is timezones: there are developers in the US, China,=20 >> Europe, and Israel who may want to join. As a starting point, how=20 >> about next Wednesday, 15:00 UTC? If I didn't do my tz math wrong,=20 >> that's >> >> 8:00 (PDT, California) >> 15:00 (UTC) >> 18:00 (IDT, Israel) >> 23:00 (CST, China) >> >> That is surely not the ideal time for everyone but it can hopefully be= =20 >> a starting point. >> >> I've also created an etherpad for collecting discussion/agenda items=20 >> at >> >> http://pad.ceph.com/p/performance_weekly >> >> Is there interest here? Please let everyone know if you are actively = >> working in this area and/or would like to join, and update the pad=20 >> above with the topics you would like to discuss. >> >> Thanks! >> sage >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" = >> in the body of a message to majordomo@vger.kernel.org More majordomo=20 >> info at http://vger.kernel.org/majordomo-info.html >> >=20 > -- > Lo=EFc Dachary, Artisan Logiciel Libre >=20 > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 --=20 Lo=EFc Dachary, Artisan Logiciel Libre --cu4W6k9SHoGoLOEcI2MprBxW6wdN2gqla 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) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlQlKjAACgkQ8dLMyEl6F2316QCffQT2oN4q2GQWQTb+foDpN4WI 8OwAoMJxx4KZ1E+6Ui5ZBLrLWayLhZ61 =/Dg9 -----END PGP SIGNATURE----- --cu4W6k9SHoGoLOEcI2MprBxW6wdN2gqla--