It would be helpful to know whether the CPU utilization is pylab-specific. I suspect the trouble may be there.<div><br></div><div>Evan<br><br><div class="gmail_quote">On Sun, Jul 17, 2011 at 1:21 PM, Fernando Perez <span dir="ltr"><<a href="http://fperez.net">fperez.net</a>@<a href="http://gmail.com">gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi all,<br>
<br>
this looks fairly serious, and we're trying to wrap up the 0.11<br>
release so that we're not eternally promising 'one more week' forever.<br>
But hogging a cpu at 100% utilization is a real problem. Can anyone<br>
else confirm this? And does anyone have ideas as to what could be the<br>
cause?<br>
<br>
Thanks,<br>
<br>
f<br>
<br>
<br>
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From: rgaudette<br>
<<a href="mailto:reply%2Bi-1238118-7704c01a6c981882533d9b8effb70f2d4b39aadd@reply.github.com">reply+i-1238118-7704c01a6c981882533d9b8effb70f2d4b39aadd@reply.github.com</a>><br>
Date: Sun, Jul 17, 2011 at 10:34 AM<br>
Subject: [ipython] ipython-qtconsole uses 100% CPU (#588)<br>
To: <a href="http://fperez.net" target="_blank">fperez.net</a>@<a href="http://gmail.com" target="_blank">gmail.com</a><br>
<br>
<br>
Hi,<br>
When I run ipython-qtconsole.exe, I observe 100% CPU usage (really 50%<br>
on my dual core machine) when nothing is running in the console. My<br>
machine consists of the following configuration:<br>
Windows 7 64 bit<br>
Python 2.7.2 64 bit binary install (from <a href="http://python.org" target="_blank">python.org</a>)<br>
PyQT and QT from Christoph Gohlke 's binary distribution<br>
PyQt-Py2.7-x64-gpl-4.8.4-1.exe<br>
<br>
I first observed this behavior on Christoph Gohlke 's<br>
ipython-0.11.dev.win-amd64-py2.7.exe. I then uninstalled that package<br>
and pull the latest IPython from github. The latest version still<br>
exhibits the 100% CPU usage behavior on my machine.<br>
<br>
Some other observations that might be helpful:<br>
<br>
* If I close the QT console window but leave the kernel running<br>
(selecting "No, just this console button"), the CPU usage stays at<br>
100%.<br>
<br>
* The windows console based ipython.exe does not have this behavior on<br>
my machine.<br>
<br>
* Task manager shows that it is pythonw.exe using the CPU<br>
<font color="#888888"><br>
--<br>
Reply to this email directly or view it on GitHub:<br>
<a href="https://github.com/ipython/ipython/issues/588" target="_blank">https://github.com/ipython/ipython/issues/588</a><br>
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</font></blockquote></div><br></div>