Re: PHP4: php_module holds memory to long !
| From: | Stanislav Malyshev | Date: | Wed, 10 Jan 2001 19:23:43 +0000 |
| Subject: | Re: PHP4: php_module holds memory to long ! | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-43716@lists.php.net to get a copy of this message | ||
SS>> Thanks for the correction! I have never seen that in action
SS>> though. Usually, the C library will keep freed memory in
SS>> free lists and does not decrease the size of the data
SS>> segment using sbrk.
Actually, from glibc source there's a hook that is supposed to do this in
some circumstances. Never could actually make it work in real life. Also,
IIRC glibc on Linux allocates really large (8k+? 16k+?) blocks as mmap's
of /dev/zero and those are really given back to system, since on free they
are just munmap'ed.
--
Stanislav Malyshev, Zend Products Engineer
stas@zend.com http://www.zend.com/ +972-3-6139665 ext.115