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From: Zvi Vered via lttng-dev <lttng-dev@lists.lttng.org>
To: Christopher Harvey <chris@cwharvey.ca>
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] Lttng: display active threads in multiple cores.
Date: Fri, 29 Mar 2024 08:09:16 +0300	[thread overview]
Message-ID: <CABRndgy8RJ-rkszYGpvnqJ6oth35ajJhWgF8T4aWFEFjZiBz0g@mail.gmail.com> (raw)
In-Reply-To: <a128a334-b2d8-4cec-ae40-91e1384a228d@app.fastmail.com>


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Hi Christopher,

Thank you very much for your reply.
Can you please explain what do you mean by ftrace-enabled kernel ?

Best regards,
Zvika

On Wed, Mar 27, 2024 at 7:32 PM Christopher Harvey via lttng-dev <
lttng-dev@lists.lttng.org> wrote:

> you can use an ftrace-enabled kernel with lttng (maybe even just
> tracecompass) or perfetto to get that kind of trace
>
>
> https://archive.eclipse.org/tracecompass.incubator/doc/org.eclipse.tracecompass.incubator.ftrace.doc.user/User-Guide.html
>
> or
>
> https://ui.perfetto.dev/
>
> On Wed, Mar 27, 2024, at 5:26 AM, Zvi Vered via lttng-dev wrote:
> > Hello,
> >
> > I have an application with 4 threads.
> > I'm required to display on the graph when thread starts working till it
> > blocks for the next semaphore.
> >
> > But without using the lttng userspace library.
> >
> > Is it possible ?
> >
> > Thank you,
> > Zvika
> > _______________________________________________
> > lttng-dev mailing list
> > lttng-dev@lists.lttng.org
> > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>

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  reply	other threads:[~2024-03-29  5:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-27  9:26 Zvi Vered via lttng-dev
2024-03-27 17:28 ` Christopher Harvey via lttng-dev
2024-03-29  5:09   ` Zvi Vered via lttng-dev [this message]
2024-04-02 14:11     ` Erica Bugden via lttng-dev
2024-04-03  3:52       ` Zvi Vered via lttng-dev
2024-04-03 18:41         ` Erica Bugden via lttng-dev

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