[Python-Dev] DTRACE support (original) (raw)

Jesus Cea jcea at jcea.es
Fri Sep 6 17:21:06 CEST 2013

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On 06/09/13 17:14, Guido van Rossum wrote:

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?

It is a patch you apply on stock Python and you get a new configure option: "--with-dtrace". If you compile Python with that flag, you get a python interpreter with dtrace probes on it.

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?

My plan is to (in the future) use that module to create new probes on the fly, like <http://chrisa.github.io/blog/2011/12/04/libusdt-runtime-dtrace-providers/>, and to export functions to communicate data to dtrace scripts, if running.

That is, this module is currently a shell I plan to fill.

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