Dear Mathieu, It's me again :). I wanted to know if it is possible to use BabelTrace library/API to read CTF trace from an external application? What I wanted to achieve in my application is, to read CTF kernel trace generated via LTTng 2.0 and select particular events (say number of times the application switched_in or out) along with their timestamps and reuse this information.
But the problem is after the installation of babeltrace, the header files in /usr/local/include/babeltrace are limited to only 5 files namely: babeltrace.h context.h format.h iterator.h trace-handle.h Also format.h further includes <babeltrace/types.h> which ofcourse could not be found in include dir path. Is there any example or doxygen for Babeltrace API that can be used to manipulate trace data? Last but not least, the time stamp resolution for LTTng trace is approximately 1ns, which is achieved through timespec struct with "CLOCK_MONOTONIC" option? I got little confused as I also see in some of your mailing lists where CLOCK_TRACE is defined, how does this differs from monotonic clock? Anxiously waiting for your reply. Best Regards, Salman -- Salman Rafiq Industrial Communication Fraunhofer-Einrichtung für Systeme der Kommunikationstechnik ESK Hansastraße 32 | 80686 München Telefon, Fax: +49 89 547088-356 | +49 89 547088-66-356 E-Mail: [email protected] Internet: http://www.esk.fraunhofer.de http://www.facebook.com/FraunhoferESK http://www.twitter.com/FraunhoferESK -----Ursprüngliche Nachricht----- Von: Mathieu Desnoyers [mailto:[email protected]] Gesendet: Monday, January 16, 2012 5:40 PM An: Salman Rafiq Betreff: Re: AW: AW: babeltrace error * Salman Rafiq ([email protected]) wrote: > > Dear Mathieu, > > Does LTTV view supports access and processing of CTF format yet for > Trace Visualization? I was curious since the website > http://lttng.org/lttng2.0 mentions that it does not support it yet. Not yet, but we are working on it. We target mid-february for LTTV support for LTTng 2.0 traces. > Which other open source/commercial tools can be used to Visualize CTF traces? The Eclipse Linux Tools LTTng integration is currently being reworked to support CTF traces. We should expect this work to be completed this winter too. But meanwhile, I know that silicon vendors are in the process of moving some of their tools to this format, but I guess it will come gradually. Best regards, Mathieu > > Wish you a very nice weekend. > > Regards, > Salman > -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com
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