[lttng-dev] great to read your presention

[David_Ke at compal.com]

Hi Geneviève,

Cool~
Hope to see it soon.

Thanks,

David

-----Original Message-----
From: Geneviève Bastien [mailto:gbastien+lttng at versatic.net] 
Sent: Monday, February 10, 2014 11:17 PM
To: Ke. David (TPE); alexmonthy at voxpopuli.im
Cc: lttng-dev at lists.lttng.org
Subject: Re: [lttng-dev] great to read your presention

Hi David,

As Alex said, the CPU usage is still a work in progress. The data is
available now, but we are working on a view to better show it. It should all
be available in master in the coming weeks.

As for the wait chain, you may be interested in the critical path analysis on
LTTng kernel traces. This feature will make it slowly into master, but in the
meantime, you can try it in our experimental version of the tracing RCP
available here: 
http://secretaire.dorsal.polymtl.ca/~gbastien/TracingRCP/

You can get the critical path of a process by selecting it in the control
flow view (with the critical path view open).

Cheers,
Geneviève


On 02/09/2014 10:49 PM, David_Ke at compal.com wrote:
> Thanks, Alexandre,
>
> Good to hear that.
> Hope to get that soon.
> By the way, some feature to suggest for the utility~ The control flow 
> is aim to analyze the "long wait time" issue for that process, IMHO, 
> If it can display the "wait chain" as well as the call stack for each 
> scheduled thread ,it will be awesome...
>
> Thanks,
>
> David
>
> ----Original Message-----
> From: Alexandre Montplaisir [mailto:alexmonthy at voxpopuli.im]
> Sent: Saturday, February 08, 2014 6:39 AM
> To: Ke. David (TPE)
> Cc: lttng-dev at lists.lttng.org; Genevieve Bastien
> Subject: Re: [lttng-dev] great to read your presention
>
> Hi,
>
> The CPU usage view is still a work-in-progress, but it should be ready 
> in a few weeks. We have a bit of infrastructure work to do first.
>
> CC'ing Genevieve, she can probably give us more details about its state.
>
> Cheers,
> Alexandre
>
>
>
> On 14-02-04 08:55 PM, David_Ke at compal.com wrote:
>> Hi Yannick,
>>
>>   
>>
>> Great to read your deck and it is really a good presentation, from 
>> that ,I know more about awesome features of Lttng.
>>
>>   
>>
>> I was a SR. DEV of MSFT Windows team and was responsible for Xperf 
>> and ADK portion in the past, Lttng did catch my eye much more than 
>> other utilities (for example perf and oprefile...etc.)
>>
>>   
>>
>> I download Lttng sample
>> trace(http://lttng.org/files/samples/sample-ctf-trace-20120412.tar.bz
>> 2
>> )as
>> well as the RCP version trace viewer( 
>> http://secretaire.dorsal.polymtl.ca/~alexmont/tracing-rcp/)but can't 
>> find the CPU usage tab in the viewer.
>>
>>   
>>
>> Is the feature still under development? Where can I got it and have a try?
>>
>>   
>>
>> Thanks,
>>
>>   
>>
>> David Ke
>>
>>
>>
>> =====================================================================
>> = 
>> =====================================================================
>> = ==================== This message may contain information which is 
>> private, privileged or confidential of Compal Electronics, Inc.  If 
>> you are
> not the intended recipient of this message, please notify the sender 
> and destroy/delete the message. Any review, retransmission, 
> dissemination or other use of, or taking of any action in reliance 
> upon this information, by persons or entities other than the intended
recipient is prohibited.
>> =====================================================================
>> = 
>> =====================================================================
>> =
>> ====================
>>
>>