Hi Sage, We are very interested to join (and contribute effort) as well. Following are a list of issues we have particular interests: 1> Large number of small files bring performance degradation most due to file system lookup (even worst with EC). 2> Messenger uses too many threads which bring burden for high density hardware (which I believe Haomai already has great progress). Thanks, Guang On Sep 26, 2014, at 2:27 AM, Sage Weil <sweil@xxxxxxxxxx> 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 > -- 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
