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From: Daniel.Thibault@drdc-rddc.gc.ca (Thibault, Daniel)
Subject: [lttng-dev] lttng trace format
Date: Fri, 21 Feb 2014 13:19:32 +0000	[thread overview]
Message-ID: <48CF5AC71E61DB46B70D0F388054EFFD2AB21175@VAL-E-02.valcartier.drdc-rddc.gc.ca> (raw)

> Date: Thu, 20 Feb 2014 21:15:42 -0500
> From: Jessica Foest <jessica.foest@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
Protection des syst?mes et contremesures (PSC) | Systems Protection & Countermeasures (SPC)
Cyber s?curit? pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS)
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2459 route de la Bravoure
Qu?bec QC  G3J 1X5
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<http://www.valcartier.drdc-rddc.gc.ca/>



             reply	other threads:[~2014-02-21 13:19 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-21 13:19 Thibault, Daniel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2014-02-21  2:15 Jessica Foest
2014-02-21  2:28 ` Jérémie Galarneau
2014-02-21  2:57   ` Jessica Foest

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