Loic, Sorry for the confusion. We have observed up to ~20% EC performance degradation and have some initial findings and want to have a discussion. Thanks Jian -----Original Message----- From: Loic Dachary [mailto:loic@xxxxxxxxxxx] Sent: Friday, September 26, 2014 3:25 PM To: ceph-devel@xxxxxxxxxxxxxxx; Zhang, Jian Subject: Re: Weekly performance meeting Hi, 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 ;-) Cheers On 25/09/2014 20:27, Sage Weil wrote: > Hi everyone, > > A number of people have approached me about how to get more involved > with the current work on improving performance and how to better > coordinate with other interested parties. A few meetings have taken > 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@xxxxxxxxxxxxxxx and #ceph-devel. That isn't always > sufficient, however. I'd like to also set up a regular weekly meeting > 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 > cycle to improve things but it will require some coordination of effort. > > 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, > Europe, and Israel who may want to join. As a starting point, how > about next Wednesday, 15:00 UTC? If I didn't do my tz math wrong, > 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 > a starting point. > > I've also created an etherpad for collecting discussion/agenda items > 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 > 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@xxxxxxxxxxxxxxx More majordomo > info at http://vger.kernel.org/majordomo-info.html > -- Loïc Dachary, Artisan Logiciel Libre -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
