Edit report at http://bugs.php.net/bug.php?id=51155&edit=1
ID: 51155
User updated by: flavius dot as at gmail dot com
Reported by: flavius dot as at gmail dot com
Summary: serialize() crashes with unreasonable/unexplicable
"out of memory" for objects
-Status: Feedback
+Status: Open
Type: Bug
Package: SPL related
Operating System: ArchLinux x86_64
-PHP Version: 5.3.1
+PHP Version: 5.3.2
New Comment:
updated version
Previous Comments:
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[2010-03-04 15:10:04] flavius dot as at gmail dot com
Ok, I've managed to compile and test with php5.3-201003041130, the bug
is still there, but it seems to crash for higher values.
for 20000 items, the peak is
peak 21.71 mb before serialize,
peak 45.59 mb after serialize. simple maths: it should need
approximatively 5 mb for every 5000 items.
The following test run for 25000 confirms my theory (roughly, +/- due to
temporarily saving the return value, runtime memory, etc):
before serialization: peak 26.98 mb
after: peak 56.7 mb
Ok, it's slightly higher than 5mb, after serialization is a small
increase over the expected (which I presumed) 2*n linear growth.
Now the final run. But first and foremost
$ sapi/cli/php -i |grep memory
memory_limit => 128M => 128M
And the test run, for 30000 items:
GENERATING DONE
peak 32.24 mb
---
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to
allocate 28574231 bytes)
The expected value was somewhere around (and I'll be generous) 80mb. But
I suppose it still has that spark of exponential growth somewhere
between 25000 and 30000 items.
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[2010-03-04 14:30:17] paj...@php.net
That's unrelated to this bug, disable imap to test a new build.
However, about this error, get a decent c-client and it will work (like
less than 4-5 years old).
------------------------------------------------------------------------
[2010-03-04 14:26:28] flavius dot as at gmail dot com
Using it gives the configure error:
configure: error: utf8_mime2text() has new signature, but U8T_CANONICAL
is missing. This should not happen. Check config.log for additional
information.
------------------------------------------------------------------------
[2010-03-01 17:02:22] j...@php.net
Please try using this snapshot:
http://snaps.php.net/php5.3-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
------------------------------------------------------------------------
[2010-02-26 13:41:59] flavius dot as at gmail dot com
Oh and I've forgot to mention, there's plenty of RAM and swap space
before running php -f:
free -m
total used free shared buffers
cached
Mem: 1975 1732 243 0 131
1027
-/+ buffers/cache: 573 1402
Swap: 5718 0 5718
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