Hi
I am fairly new to Embedded Linux and am looking at the open source tools
available for it.
Is lttng similar to the graphical trace/profiling tools supplied with Wind
River Workbench?
Are there any other open source graphical profiling/trace tools available for
Linux?
Best regards
David
Hi
I am new to tracing in Linux and to lttng. I have a multi-threaded user
application and I want to see:
1) When the threads are scheduled to run
2) Which cores the threads are running on.
I have installed lttng on Ubuntu 14.04 LTS. I am expecting to visualise the
trace using Tra
help
please.
Best regards
David
From: Jonathan Rajotte [mailto:jonathan.r.jul...@gmail.com]
Sent: 24 August 2016 17:39
To: Francis Deslauriers
Cc: David Aldrich ; lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] Beginner question: how to inspect scheduling of
multi-threaded user application
Hi
I'm afraid I'm still struggling with getting started with lttng. To recap, I
want to use lttng + TraceCompass to monitor the scheduling of threads in my
multi-threaded C++ application on Ubuntu.
Here is my session:
$ sudo pkill lttng-sessiond
$ sudo lttng-sessiond
Error: Already running dae
Hi Jonathan
Thanks, I had not logged out/in after joining the tracing group.
I now see:
$ lttng create demo_session
Session demo_session created.
$ sudo lttng enable-event -k sched_switch -s demo_session
Error: Event sched_switch: Kernel tracer not available (channel channel0,
session demo_sess
Thank you, things are looking much better now.
David
> -Original Message-
> From: Jonathan Rajotte Julien [mailto:jonathan.rajotte-jul...@efficios.com]
> Sent: 15 September 2016 16:50
> To: David Aldrich ; lttng-
> d...@lists.lttng.org
> Subject: Re: [lttng-dev] Beginne
Hi
I wonder if I might ask for some more guidance please?
I now have lttng and Trace Compass running on Ubuntu. I want to inspect the
scheduling of threads in my user-space application. So far, I have
successfully captured a trace with the sched_switch event enabled:
$ sudo lttng enable-even
g-dev@lists.lttng.org
> Subject: Re: [lttng-dev] Beginner question: how to inspect scheduling of
> multi-threaded user application?
>
> Hi
>
>
> On 2016-09-16 07:43 AM, David Aldrich wrote:
> > Hi
> >
> > I wonder if I might ask for some more guidance please
