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How I fixed a very old GIL race condition in Python 3.7 Victor Stinner Thu 08 March 2018 It took me 4 years to fix a nasty bug in the famous Python GIL (Global Interpreter Lock), one of the most critical part of Python. I had to dig the Git history to find a change made 26 years ago by Guido van Rossum: at this time, threads were something esoteric. Let me tell you my story. Fatal Python error cau
Dave Beazley's presentation from PyCon'2010 in Atlanta Georgia. This is a mirror of the original presentation hosted at http://blip.tv/pycon-us-videos-2009-2010-2011/pycon-2010-understanding-the-python-gil-82-3273690. David Beazley teaches intense in-person Python Programming and Computer Science courses in Chicago. Details at https://www.dabeaz.com/courses.html
Nobody understands the GIL - Part 2: Implementation Published on June 14, 2013 by Jesse Storimer Last time, I began wanting to take you on a deep dive into MRI to see how the GIL is implemented. But first, I wanted to make sure I was asking the right question. Part 1 formulated the question, but today we'll look for answers inside MRI itself. We'll go looking for that elusive creature they call th
Nobody understands the GIL Published on June 12, 2013 by Jesse Storimer Throughout most of my time in the Ruby community, MRI's infamous GIL has been an elusive creature for me. This is a story about thread safety, and finally catching that elusive creature to get a good look at it. The first time I heard mention of the GIL, it had nothing to do with how it worked, what it did, or why it existed.
“Some people, when confronted with a problem, think ‘I know, I’ll use regular expressions.’ Now they have two problems.” Jamie Zawinski The other day at work one of our python processes stopped responding. It was on one of our servers that was responsible for fetching and analyzing the web pages that we might recommend to people. By the time I got around to debugging this problem, the last log mes
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