From:
Operating system: LINUX
PHP version: 5.3.8
Package: Streams related
Bug Type: Bug
Bug description:memory leak with create context
Description:
------------
hi, when i create a context inside a function i see a memory leak, but when
i create it in the main source code line, i don´t see it...
please check the script..
i think the problem is something that don´t leave memory get back when
destroying context variable
Test script:
---------------
memory leak:
<?php
function g(){
$context=stream_context_create(array('http'=>array('timeout'=>1)));
$ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
unset($context);
return($ret);
}
$base=memory_get_usage();
while(1){
g();
usleep(50000);
echo (memory_get_usage()-$base)."\n";
// memory get bigger and bigger here....
}
?>
memory leak too:
<?php
$base=memory_get_usage();
while(1){
$context=
stream_context_create(array('http'=>array('timeout'=>1)));
$ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
usleep(50000);unset($ret,$context);
echo (memory_get_usage()-$base)."\n";
// memory get bigger and bigger...
}
?>
nice:
<?php
$base=memory_get_usage();
$context=
stream_context_create(array('http'=>array('timeout'=>1)));
while(1){
$ret=file_get_contents('http://172.17.0.5/not_found',0,$context);
usleep(50000);unset($ret);
echo (memory_get_usage()-$base)."\n";
// memory is nice here...
}
?>
Expected result:
----------------
NICE:
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552
Warning...
3552
MEMORY LEAK:
Warning...
40120
Warning...
41344
Warning...
42568
Warning...
43792
Actual result:
--------------
well i think that others fields explain...
MEMORY LEAK:
Warning...
40120
Warning...
41344
Warning...
(+- 1224 per while interaction)
i don´t know how to solve this, unset don´t work, =null don´t work, and
i don´t find a function to destroy contexts...
--
Edit bug report at https://bugs.php.net/bug.php?id=60570&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60570&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60570&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60570&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60570&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60570&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60570&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60570&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60570&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60570&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60570&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60570&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60570&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60570&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60570&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60570&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60570&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60570&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60570&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60570&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60570&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60570&r=mysqlcfg
