[Python-Dev] DTRACE support

[Guido van Rossum]

I've heard good things about DTRACE but never used it myself.

Do I understand correctly that you have to build a separate Python
executable with it turned on?

I noticed one odd thing in the patch: apparently the dtrace module
only exists to have a flag that tells whether it is enabled. Can't
that flag be added to the sys module?

On Fri, Sep 6, 2013 at 8:08 AM, Jesus Cea <jcea at jcea.es> wrote:
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> As far as I know, Erlang, Ruby, PHP, Perl, etc., support Dtrace.
> Python is embarrasingly missing from this list.
>
> Some examples:
>
> <http://crypt.codemancers.com/posts/2013-04-16-profile-ruby-apps-dtrace-part1/>
> <http://www.phpdeveloper.org/news/18859>
> <http://www.erlang.org/doc/apps/runtime_tools/DTRACE.html>
>
> I have spend a very long time on a patch for Dtrace support in most
> platforms with dtrace available. Currently working under Solaris and
> derivatives, and MacOS X. Last time I checked, it would crash FreeBSD
> because bugs in the dtrace port, but that was a long time ago.
>
> I would like to push this to Python 3.4, and the window is going to be
> closed soon, so I think this is the time to ask for opinions and
> support here.
>
> Does Python-Dev have any opinion or interest in this project?. Should
> I push for it?
>
> Some (not current) details: http://bugs.python.org/issue13405
>
> DTrace is amazing: http://dtrace.org/blogs/
>
> PS: I can't release this code as a PyPI project, because it mess with
> the inner core of Python.
>
> - --
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--Guido van Rossum (python.org/~guido)