[lttng-dev] lttng trace format

[Thibault, Daniel]

> Date: Thu, 20 Feb 2014 21:15:42 -0500
> From: Jessica Foest <jessica.foest at gmail.com>
>
> is there a document that explain the meaning of fields displayed in the traces generated by babeltrace ?
>
> an example :
>
> [19:52:06.617756425] *(+0.000001667)* workstation sys_splice: { cpu_id = 3
}, { perf_branches = 418157709, perf_branch_instructions = 418156946,
perf_cache_misses = 6682769, perf_cache_references = 50147680,
perf_instructions = 3049323811, vppid = 587, ppid = 587, vtid = 3502, tid =
3502, vpid = 3499, nice = 0, prio = 20, procname = "lttng-consumerd", pid =
3499 }, { fd_in = 10, off_in = 0x0, fd_out = 26, off_out = 0x0, len =
65536, flags = 5 }
>
> the field mentioned in blue , is it the execution time of sys_splice ?
>
> if yes , what's the necessity of sys_exit ?

   Nothing in blue in the digest version of your post, sadly.  If you mean the *(+0.000001667)* field, that's just the time elapsed since the previous event.

Daniel U. Thibault
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