[lttng-dev] status of lttng top

Julien Desfossez jdesfossez at efficios.com
Mon Oct 22 14:10:01 EDT 2012

Hi Andrew,

On 22/10/12 07:00 AM, McDermott, Andrew wrote:
> Hi,
>> LTTngTop is still work in progress and will remain that way for a long
>> time, but the version in the PPA (or in the master branch in git) is
>> perfectly usable for offline traces (traces recorded and replayed
>> through LTTngTop).
>> The "live" branch is more experimental and requires patches in both
>> Babeltrace and Lttng-tools (all documented in the README-LIVE file), but
>> it worked at the time of Plumbers, I didn't have much time since then to
>> rebase the branches.
>> I am waiting for the release of Lttng-tools 2.1 (currently in RC) before
>> merging those patches. After these patches are integrated, LTTngTop will
>> be able to work live without any modifications, so directly reading
>> traces in memory shared with the tracer.
> Thanks for this info.
> Right now my interest is with the live streaming; we have a use case
> where the live streaming is really the only practical solution.
> Very roughly, would you expect the RC series to conclude this year, or
> (early) next year?

Just to clarify, are you interested in live network trace reading or
live in-memory reading ?
The patches I was talking about are for in-memory trace reading.



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