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From: David.Aldrich@EMEA.NEC.COM (David Aldrich)
Subject: [lttng-dev] Beginner question: how to inspect scheduling of multi-threaded user application?
Date: Wed, 24 Aug 2016 07:17:36 +0000	[thread overview]
Message-ID: <35de22c3d2034f3abb75596477b23e3a@EUX13SRV1.EU.NEC.COM> (raw)

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 TraceCompass.

I have read the following doc section:

http://lttng.org/docs/#doc-tracing-your-own-user-application

In order to collect my trace, must I define custom tracepoint definitions ( in a tracepoint provider header file ), and insert tracepoints into my user application, or is there a simpler way of achieving my goal?

Best regards

David

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             reply	other threads:[~2016-08-24  7:17 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-24  7:17 David Aldrich [this message]
2016-08-24 16:17 ` Francis Deslauriers
2016-08-24 16:35   ` Jonathan Rajotte
2016-08-24 16:39     ` Jonathan Rajotte
2016-08-26  7:49       ` David Aldrich
2016-08-26 14:53         ` Jonathan Rajotte Julien

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