Ubuntu
pygtk package

  1. Bug #664920
  2. Comment #0

Comment 0 for bug 664920

Revision history for this message
Damon Lynch (dlynch3) wrote : 100% CPU usage when calling a child process from a python script

When creating a child process from a python script that uses pygtk 2.21, such subprocess.check_call(), 100% of the CPU is used (technically, 100% of the core the python interpreter is using).

If the creation of the child processes are removed, the script runs as expected.

According to user exarkun on the #python IRC channel, the problem may be manifesting when the child process exits. It may be related to a bug that was fixed in 9.10, but broken in 9.04. If that is the case, this is the relevant bug report: https://bugzilla.gnome.org/show_bug.cgi?id=481569

The code in which I noticed this problem is in the videometadata.py module of Rapid Photo Downloader: http://bazaar.launchpad.net/~dlynch3/rapid/trunk/annotate/head%3A/rapid/videometadata.py#L189

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: python-gtk2 2.21.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
Date: Thu Oct 21 22:51:42 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: pygtk