Hi, I added - isa : performances improvement expected ~20% [jian.zhang] to http://pad.ceph.com/p/performance_weekly . Do you have more information about this degradation ? Cheers On 26/09/2014 10:37, Zhang, Jian wrote: > 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 > -- Loïc Dachary, Artisan Logiciel Libre
Attachment:
signature.asc
Description: OpenPGP digital signature
