Re: Memory leak detection

Replies are listed 'Best First'.
Re^2: Memory leak detection by runnerup (Novice) on Sep 07, 2014 at 15:55 UTC
The code itself is over 2000 lines, so I think it would be difficult to post or analyze. However, my question is actually how can ARENA COUNTS show 69084 REF-Tie::RefHash::Weak when all the adding all the scalar(keys %HASHS) of all the hashes using Tie::RefHash::Weak, scalar(keys %EACHHASH) added together is much much less than 69084. Is there any common case that can happen? I am deleting the keys like delete($hash($key)). All the keys are to Danga::Socket::GCallback, so there should be no circular references possible.	[reply]
Re^3: Memory leak detection by andal (Hermit) on Sep 08, 2014 at 06:48 UTC
However, my question is actually how can ARENA COUNTS show 69084 REF-Tie::RefHash::Weak when all the adding all the scalar(keys %HASHS) of all the hashes using Tie::RefHash::Weak, scalar(keys %EACHHASH) added together is much much less than 69084. That is why they call it "memory leak" :) The "arena" goes through internal perl structures to see which structures are allocated. As long as variable is accessible from the user code, it is "good" structure. The problem comes, when the structure is not accessible from user code. This structure is then "leaked". So, if you have a leak, then you won't be able to see leaked structures from your perl code. Of course in this case your count won't match the count of "arena".	[reply]
Re^4: Memory leak detection by runnerup (Novice) on Sep 11, 2014 at 02:46 UTC
Other than cyclic references (which I don't think could exist in my code), do you know what could cause this to happen? I would think that if the reference count is 0, that the objects would be deleted. What approach should I use to find the problem?	[reply]
Re^5: Memory leak detection by andal (Hermit) on Sep 11, 2014 at 07:08 UTC
Re^6: Memory leak detection by Corion (Patriarch) on Sep 11, 2014 at 07:24 UTC
Some notes below your chosen depth have not been shown here


Come for the quick hacks, stay for the epiphanies.
	PerlMonks