[lttng-dev] [diamon-discuss] Parsing external datasources in trace compass for regions of interest in a trace

[Mathieu Desnoyers]

----- Original Message -----
> From: "Matthew Khouzam" <matthew.khouzam at ericsson.com>
> To: "tracecompass developer discussions" <tracecompass-dev at eclipse.org>, diamon-discuss at lists.linuxfoundation.org,
> lttng-dev at lists.lttng.org
> Sent: Friday, February 6, 2015 5:13:42 PM
> Subject: [diamon-discuss] Parsing external datasources in trace compass for regions of interest in a trace
> 
> Hello,
> 
> I am right now looking getting external datasources to supply
> information for a trace, like a region of interest.
> 
> Background: we can run an analysis on a trace manually, in python, excel
> or what have you and come up with something interesting, like: around
> 12:30pm something happened to a trace. Let's dig deeper with tracecompass.
> 
> To make this work: we need to find a way to import the data, so we
> should agree on a standard data standard. I personally like the LTTng
> analysis outputs so I am picking that for now. :)
> 
> Here are some formats that could be acceptable as regions of interest
>  * [2015-01-15 12:18:37.216484041, 2015-01-15 12:18:53.821580313] name
>  * [2015-01-15 12:18:37.216484041, 2015-01-15 12:18:53.821580313] name
> boookmark
>  * [ 2015-01-15 12:18:37.216484041] name boookmark
>  * [12:18:37.216484041] name boookmark
>  * [ 12:18:37.216484041, 12:18:53.821580313] name boookmark
>  * [ 2014-12-12 17:29:43.802588035] name with space
>  * [ 2014-12-12 17:29:43] irrational title
>  * [17:29:43.802588035] rational title
>  * [ 17:29:43] test test test
>  * [17:29:43,17:29:44] thing
>  * [12:18:37.216484041   ] (no text)
> 
> When there is one timestamp, we will create one bookmark.
> When there is a range, we would create two bookmarks in a given trace,
> the first one being appended with " start" the second with " end"
> 
> This should allow tracecompass to marginally benefit from the lttng
> analyses that are looking pretty nice, and later perhaps from tcp
> analyses from tshark and syslog stuff.
> 
> Does anyone have an objection to this way of working?

Do you intend on supporting timestamps that appear elsewhere than
the beginning of lines ? Do you consider all text at the right of
the timestamp or timestamp range to be part of the naming of the
region of interest linked to the timestamp/timestamp range ?

Julien, did we want to reserve [] for only timestamp range or
we also want them for single timestamps ?

Thanks,

Mathieu

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