linux-kernel - Re: ftrace trace_raw

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Message-ID: <CADVatmN-5W5J=dn1y9fuuV32bE-NmUpEd8983KLO3Jsf0d5G4g@mail.gmail.com>
Date:   Wed, 18 Dec 2019 16:31:41 +0000
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     David Laight <David.Laight@...lab.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: ftrace trace_raw_pipe format

On Tue, Dec 17, 2019 at 10:34 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Tue, 17 Dec 2019 17:44:40 +0000
> David Laight <David.Laight@...LAB.COM> wrote:
>
> > I'm trying to 'grok' the trace_raw_pipe data that ftrace generates.
> > I've some 3rd party code that post-processes it, but doesn't like wrapped traces
> > because (I think) the traces from different cpus start at different times.
> >
<snip>
>
> You may want to use libtraceevent (which will, hopefully, soon
> be in debian!). Attached is a simple program that reads the data using
> it and prints out the format.

merge request has been opened in debian, waiting for the debian
kernel-team to review and merge it,


-- 
Regards
Sudip