linux-kernel - Re: tracing child threads with address filtering using intel

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Message-ID: <87o9c464gi.fsf@ashishki-desk.ger.corp.intel.com>
Date:   Mon, 08 Oct 2018 14:52:13 +0300
From:   Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:     "Alharthi\, Mansour A" <mansourah@...ech.edu>,
        "peterz\@infradead.org" <peterz@...radead.org>,
        "acme\@kernel.org" <acme@...nel.org>,
        "mingo\@redhat.com" <mingo@...hat.com>,
        "adrian.hunter\@intel.com" <adrian.hunter@...el.com>
Cc:     "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: tracing child threads with address filtering using intel_pt in perf

"Alharthi, Mansour A" <mansourah@...ech.edu> writes:

> Hello all,

Hi,

> Assume this test code:
>
> thread_start(){
> ...
> test();
> ...
> }
>
> test(){
> printf("test");
> }
>
> main(){
> ...
> pthread_create(......, thread_start,....);
> }

Can you include the complete test case code?

> Tracing the above program with the following command:
> perf record -v -m 512,10000 -e intel_pt//u -T --switch-events --filter
> 'filter * @ ./test' -- ./test

Can you run it with -vvv and also include its output?

Thanks,
--
Alex