# Fwd:  ZEND_DISABLE_MEMORY_CACHE=0 problematic on large arrays

- Thread: https://externals.io/message/4831
- Original archive: https://news-web.php.net/php.internals/4831
- Started by Andi Gutmans on 2003-10-14T14:58:42+00:00
- Messages: 1
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## #4831 — Andi Gutmans — 2003-10-14T14:58:42+00:00

URL: https://externals.io/message/4831#4831

FYI, this should be fixed now. If anyone still bumps into weird performance 
problems relating to the memory manager please let me know.

Andi

>Date: Tue, 30 Sep 2003 21:21:38 +0800
>From: Alan Knowles <alan@akbkhome.com>
>User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030911
>To:  internals@lists.php.net
>Subject: [PHP-DEV] ZEND_DISABLE_MEMORY_CACHE=0 problematic on large arrays
>
>http://cvs.php.net/diff.php/ZendEngine2/zend_alloc.c?r1=1.118&r2=1.119&ty=h&num=10
>
>" - Add heap to memory manager. This should improve performance.
>- Enabling it by default so that it gets tested. We should decide before
>beta 2 if we want to revert back to malloc or not."
>
>Well, it's got some testing today.. - and it didnt do too well..
>
>I'm testing by using the php-gtk generator.php (that parses the gtk.defs 
>scheme file into a (huge) php array.
>
>a default php5 checkout. build on a P800 timesout after parsing about 
>12000 lines in 300 seconds.
>
>when I revert the change:
>#define ZEND_DISABLE_MEMORY_CACHE 1
>
>It parses and builds the file ok.. in < 100seconds..
>
>Regards
>Alan