Comments on: Finding Circular Reference leaks in Perl http://letsgetdugg.com/2009/04/19/finding-circular-reference-leaks-in-perl/ Random tech jargon Mon, 06 Sep 2010 09:29:35 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: victori http://letsgetdugg.com/2009/04/19/finding-circular-reference-leaks-in-perl/comment-page-1/#comment-166 victori Wed, 30 Dec 2009 21:22:58 +0000 http://letsgetdugg.com/?p=43#comment-166 I would have to agree with j_king, reference counting garbage collection is extremely predictable compared to say the JVM GC algorithms. Sure some patterns such as the <a href="http://en.wikipedia.org/wiki/Strategy_pattern" rel="nofollow">strategy pattern</a> might be more difficult to implement correctly without leaking, but at the end of the day garbage collection times are predictable. ** by strategy pattern I mean a strategy implementation that will need access to the parent instance creating a circular reference leak. I would have to agree with j_king, reference counting garbage collection is extremely predictable compared to say the JVM GC algorithms. Sure some patterns such as the strategy pattern might be more difficult to implement correctly without leaking, but at the end of the day garbage collection times are predictable.

** by strategy pattern I mean a strategy implementation that will need access to the parent instance creating a circular reference leak.

]]> By: j_king http://letsgetdugg.com/2009/04/19/finding-circular-reference-leaks-in-perl/comment-page-1/#comment-164 j_king Wed, 23 Dec 2009 20:13:21 +0000 http://letsgetdugg.com/?p=43#comment-164 @Ted Why is it unbelievable? Python uses it too. I imagine quite a few other interpreted languages do as well. They all have practical reasons for it. Most notably, low overhead and ease of implementation. @Ted

Why is it unbelievable? Python uses it too. I imagine quite a few other interpreted languages do as well. They all have practical reasons for it.

Most notably, low overhead and ease of implementation.

]]> By: Ted Henry http://letsgetdugg.com/2009/04/19/finding-circular-reference-leaks-in-perl/comment-page-1/#comment-160 Ted Henry Thu, 17 Dec 2009 05:56:46 +0000 http://letsgetdugg.com/?p=43#comment-160 Thanks for the article. It is unbelievable in this day and age that a memory-managed language would use reference counting. Bad, Perl. Bad. Thanks for the article.

It is unbelievable in this day and age that a memory-managed language would use reference counting. Bad, Perl. Bad.

]]> By: Andy Lester http://letsgetdugg.com/2009/04/19/finding-circular-reference-leaks-in-perl/comment-page-1/#comment-34 Andy Lester Wed, 06 May 2009 19:09:22 +0000 http://letsgetdugg.com/?p=43#comment-34 Note that you can do automated testing of these leaks with Test::Memory::Cycle, which wraps around Devel::Cycle. Note that you can do automated testing of these leaks with Test::Memory::Cycle, which wraps around Devel::Cycle.

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