Re: Weekly performance meeting

[Mark Nelson <mark.nelson@inktank.com>]

I'll be there too, and 100% agree with you Kasper! :)

Mark

On 09/25/2014 02:27 PM, Kasper Dieter wrote:
> Hi Sage,
>
> I'm definitely interested in joining this weekly call starting Oct 1st.
> Thanks for this initiative!
>
> Especially I'm interested in:
> - how can we reduce the number of threads in the system
>    -- including to avoid the context switches in between
>    -- including to avoid the queues and locks in between
> - how we can reduce the number of lines of code
>    -- including the multiple system calls for each IO
> - how we can introduce a high efficient timestamp collection of the most important FN check-points
> 	(see for example the attached file)
> 	to measure the change and effect of our actions
>
> Best Regards,
> -Dieter
>
>
> On Thu, Sep 25, 2014 at 08:27:00PM +0200, 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@vger.kernel.org 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