Thnaks for all answers, they were quite usefull.
Iīve many circular refs, and now I weakened them, which reduced slightly the memory usage. But still the process grows and donīt free its memory.
100K HTML isnīt a big problem, but some times I have a 10mb ou 30mb structure in memory, which then generates a 3 mb HTML. And thats the problem.
Iīm sure there arenīt circular refs anymore, but system doesnīt reclaims memory. I think this is the normal behavior, and Apache2::SizeLimit is the only solution for this. Am I right?
But I still canīt undestand why it says the sub "end" is eating all this memory! I would understand if it says there is a global variable or something, but why a sub? For example, the perl-stats Memory Usage of the Html::page package says:
128: undef PV 44 bytes html
129: undef NULL 24 bytes 0xa7f4cb8
130: undef PV 37740 bytes Content-type: text/html
Cache-Control: no-cache,no-store,max-age=0
Pragma: no-cache
<html>... ALL MY PAGE HERE 2 MB OF DATA!!!
Why is it still arround? Iīve done a $page->{html} = ''; in the DESTROY method and Iīm sure it was invoked. And, by the way, it has nothing to do with the sub "end". "end" just parses $page->{html}, then flushes it to the browse and then undef $page->{html}. Shouldnīt "undef" be enouth?
Thanks monks!
Diego de Lima
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and then undef $page->{html}. Shouldn't "undef" be enough?
That depends upon what that hash entry actually is. If it is a reference (or something containing a reference)
to data which is held elsewhere, you just clear that slot from the reference, but not the referenced data.
Consider:
perl -le '$foo = "bar"; $h->{foo} = \$foo; undef $h->{foo}; print "foo
+ :$foo:"'
foo :bar:
which is different to
perl -le '$foo = "bar"; $h->{foo} = \$foo; undef ${$h->{foo}}; print "
+foo :$foo:"'
foo ::
where the referenced data is cleared.
--shmem
_($_=" "x(1<<5)."?\n".q·/)Oo. G°\ /
/\_¯/(q /
---------------------------- \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}
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[d/l]
[select] |
In my case, $page->{html} is a simple string, like:
$page->{html} = '...ALL HTML HERE 2 MB OF PLAIN TEXT...';
So, isnīt undef $page->{html} enought?
Diego de Lima | [reply] |
If you run the exact same request multiple times and the process size grows every time, you have a leak, probably a circular reference. If it stops growing but remains at the larger size, that is completely normal and the only way to avoid it is to structure your code so that it doesn't need to have all the data in memory at once.
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