Hi TSK,
>From [1]:
You must provide the following items for the bug to be reproducible:
* Component(s) involved : [ https://bugs.lttng.org/projects/lttng-tools |
LTTng-tools ] , [ https://bugs.lttng.org/projects/lttng-ust | LTTng-UST ] , [
https://bugs.lttng.org/projects/lttng-modules | LTTng-modules ] , [
https://bugs.lttng.org/projects/urcu | liburcu ] , or [
https://bugs.lttng.org/projects/babeltrace | Babeltrace ] ? If the bug involves
more than one component, report it under the [
https://bugs.lttng.org/projects/lttng | Redmine LTTng umbrella project ] .
* Component version : Full version of the software exhibiting the bug (
--version option) or Git commit hash for custom builds.
* System information :
* Architecture, number of CPUs.
* Operating system version ( uname -a ) and distribution
Please explicitly report the version of each components: lttng-tools,
lttng-ust, lttng-modules, liburcu, and babeltrace.
[1] https://lttng.org/community/#bug-reporting-guidelines
From: "tujalasaikiran" <tujalasaiki...@gmail.com>
To: "lttng-dev" <lttng-dev@lists.lttng.org>
Sent: Thursday, March 28, 2019 7:50:17 AM
Subject: [lttng-dev] Fwd: LTTng user space data not flushed out
---------- Forwarded message ----------
From: Jérémie Galarneau < [ mailto:jeremie.galarn...@efficios.com |
jeremie.galarn...@efficios.com ] >
Date: Monday, March 25, 2019
Subject: LTTng user space data not flushed out
To: tujalasaikiran < [ mailto:tujalasaiki...@gmail.com |
tujalasaiki...@gmail.com ] >
Hi Tujala,
Please use the public development mailing list
( [ mailto:lttng-dev@lists.lttng.org | lttng-dev@lists.lttng.org ] ) to get
community support.
Private support is available through EfficiOS' support agreements.
Thanks,
Jérémie
On Sat, 23 Mar 2019 at 13:13, tujalasaikiran < [
mailto:tujalasaiki...@gmail.com | tujalasaiki...@gmail.com ] > wrote:
>
> Hi,
> I'm using LTTng live mode, the "live" parameter in the below command is the
> time at which data is flushed. We get zero content size packets if we don't
> have any data generated from the tracer. This is true for kernel space
> domain, that is getting content size zero packets. Whereas in the user space
> domain, I'm not getting zero content size packets this makes the "live
> viewer" (babeltrace) to not to show any trace data until the session stop.
> My application generates the kernel domain events frequently whereas
> userspace domain events generate very rarely. Default flush time in "lttng
> create" command is 1 second, this is honored in kernel domain whereas in
> userspace domain not.
> Below commands, I'm using for LTTng configuration and using babel trace
> viewer to view live trace.
>
> lttng create mysession --live
> lttng enable-event -k sched_swich
> lttng enable-event -u mytrace_point:tp_one
> lttng start
> babeltrace --input-format=lttng-live net://localhost/host/mypc-name/mysession
> <---- not getting any data from babeltrace until I stop the session------>
> lttng stop
> <--- I'm getting data from babeltrace once I stop the lttng session --->
> lttng destroy
> Thanks,
> TSK.
>
>
--
Jérémie Galarneau
EfficiOS Inc.
[ http://www.efficios.com/ | http://www.efficios.com ]
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