#42509 [Asn]: GMP without gmp_init eats memory
| From: | nlopess@php.net | Date: | Mon, 03 Sep 2007 14:25:12 +0000 |
| Subject: | #42509 [Asn]: GMP without gmp_init eats memory | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-117046@lists.php.net to get a copy of this message | ||
ID: 42509
Updated by: nlopess@php.net
Reported By: thomas dot hebinck at digionline dot de
Status: Assigned
Bug Type: Math related
Operating System: Linux
PHP Version: 5.2.4
Assigned To: stas
New Comment:
Stas: what do you think about this patch:
http://web.ist.utl.pt/nuno.lopes/php_gmp_bug42509.txt
Previous Comments:
------------------------------------------------------------------------
[2007-09-03 10:47:10] jani@php.net
[jani@localhost php_5_2]$ sapi/cli/php t.php
79768
99792024
[jani@localhost php_5_2]$ USE_ZEND_ALLOC=0 sapi/cli/php t.php
8236
8236
------------------------------------------------------------------------
[2007-09-01 17:02:26] thomas dot hebinck at digionline dot de
Description:
------------
Various GMP Functions eat memory, when not called directly with
integers or strings instead of gmp resources.
Reproduce code:
---------------
$a='1234';
for($i=0;$i<200000;$i++) {
$c=gmp_add(gmp_init($a),gmp_init($a));
}
echo memory_get_usage() . "¶\n";
for($i=0;$i<200000;$i++) {
$c=gmp_add($a,$a);
}
echo memory_get_usage() . "¶\n";
Expected result:
----------------
Both memory_get_usage() should show nearly the same values.
Actual result:
--------------
1732656¶ // ~ 2 MB
43809696¶ // ~ 43 MB
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Edit this bug report at http://bugs.php.net/?id=42509&edit=1