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<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ok, <o:p></o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I‘ve been busy with other stuff, but I‘m almost
finished with a patch to submit as an alternative.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>cProfile.enable() will then take an „allthreads“
argument, which when enabled, will set the profiler state on all threads _<i>currently</i>_
running.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Now, I only realized this late, but _<i>currently</i>_ is really
not good enough. In order to do this properly, you want to also profile
threads that are created during the session.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For this reason, Maybe I was a bit rash invalidating this. Anyway,
keep your eyes trained on issue 9609 where I‘ll hopefully put my patch in
real soon now.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=IS style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'>K<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> python-dev-bounces+kristjan=ccpgames.com@python.org
[mailto:python-dev-bounces+kristjan=ccpgames.com@python.org] <b>On Behalf Of </b>GrosBedo<br>
<b>Sent:</b> Thursday, September 09, 2010 5:10<br>
<b>To:</b> python-dev@python.org<br>
<b>Subject:</b> Re: [Python-Dev] cProfile and threads<o:p></o:p></span></p>
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<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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<div id=":2i">
<p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>Hello,<br>
<br>
Ive just stumbled accross your changes Krisvale, and from your last reply, I
can see that you invalidated your changes :<br>
<br>
<o:p></o:p></span></p>
<pre><span lang=EN-US>I just realized that this is probably a redundant change.<o:p></o:p></span></pre><pre><span
lang=EN-US>We have C apis to get all the Thread states in an interpreter state (I didn't even know there was such a thing as multiple interpreter states, but there!)<o:p></o:p></span></pre><pre><span
lang=EN-US>This is the PyInterpreterState_ThreadHead() api et al.<o:p></o:p></span></pre><pre><span
lang=EN-US>>From C, all that is missing is a SetTrace api that takes a thread state.<o:p></o:p></span></pre><pre><span
lang=EN-US><o:p> </o:p></span></pre><pre><span lang=EN-US>>From python, the threading module provides access to all Thread objects, and each of those has a settrace/setprofile method.<o:p></o:p></span></pre><pre><span
lang=EN-US><o:p> </o:p></span></pre><pre><span lang=EN-US>To turn on global tracing from cProfile, all that is needed is to iterate over all the Thread objects.<o:p></o:p></span></pre>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<div><pre><span lang=EN-US>Setting this to invalid, since there already are APIs to do this, at least from .py code.<o:p></o:p></span></pre></div>
</blockquote>
<div>
<p class=MsoNormal><span lang=EN-US> Could you please provide more
explanations, or even an example ? Because it seems that you're the only one on
earth to finally find a way to multithread the cProfiler...<o:p></o:p></span></p>
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<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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