Re: [diamon-discuss] Diamon Meeting on Tuesday February 9th, 2016, at 11h EDT (15h UTC)

The conference call is starting now. See you there,

Thanks,

Mathieu

----- On Feb 8, 2016, at 2:13 PM, Julien Desfossez [email protected] wrote:

> Hi,
> 
> Here is the information for tomorrow's call:
> February 9th, 2016, at 11h EDT (15h UTC)
> 
> Conference: 415-906-5657 PIN: 88326
> URL for the screen sharing: www.uberconference.com/mdolan
> 
> Local International phone numbers are available at:
> https://www.uberconference.com/international
> 
> Please note anyone dialing using the international numbers need to dial
> the local international number for the country they are in, then enter
> the US conference number (4159065657), and then enter the PIN
> (88326).
> 
> Julien
> 
> On 28-Jan-2016 08:08:45 PM, Mathieu Desnoyers wrote:
>> Hi,
>> 
>> Following the blog post published two weeks ago [1], we would like to
>> propose organizing a phone meeting with all interested members of this
>> workgroup on February 9th to gather feedback and ideas for improvement
>> on the subject of measuring and detecting high response time.
>> 
>> At EfficiOS, we have developed a kernel module for monitoring at run-time
>> the delay between the moment the kernel starts processing an interrupt
>> (do_IRQ) and the moment the target task gets scheduled in or has finished
>> processing the data.
>> 
>> When a high latency is detected, it emits a tracepoint event and can
>> wakeup a user-space script to take arbitrary actions as soon as
>> possible.
>> 
>> The main intent is to provide an entry point in a kernel trace. After
>> that, everyone has their own methodology to process the trace. The blog
>> post illustrates what we can do with LTTng as an example but the
>> detection and triggers are not coupled with any tracer.
>> 
>> The proposed agenda is a discussion around these points:
>> - presentation of the scope of the problem
>> - limitation of the current tools
>> - overview of the latency_tracker module applied for this use-case
>> -- current state
>> -- use-cases
>> -- future plans
>> - from the audience: comments, ideas, other approaches, etc.
>> 
>> If you have other points you would like to discuss around this subject,
>> please let me know and I will add them.
>> 
>> Also, if you wish to attend but can't make it at the proposed date and
>> time, let us know.
>> 
>> The details for the conference call will be sent soon.
>> 
>> Thanks,
>> 
>> Julien & Mathieu
>> 
>> [1] https://lttng.org/blog/2016/01/06/monitoring-realtime-latencies/
>> 
>> --
>> Mathieu Desnoyers
>> EfficiOS Inc.
> > http://www.efficios.com

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com