#38678 [Opn->Asn]: APC docs need mmap infos
| From: | bjori@php.net | Date: | Sun, 17 Jan 2010 15:45:14 +0000 |
| Subject: | #38678 [Opn->Asn]: APC docs need mmap infos | ||
| References: | 1 | Groups: | php.doc.bugs |
| Request: | Send a blank email to doc-bugs+get-3733@lists.php.net to get a copy of this message | ||
ID: 38678
Updated by: bjori@php.net
Reported By: thomas-lists at mysnip dot de
-Status: Open
+Status: Assigned
Bug Type: Documentation problem
Operating System: Linux
PHP Version: Irrelevant
-Assigned To:
+Assigned To: gopalv
New Comment:
Gopal: could you help us out here?
Previous Comments:
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[2006-09-01 09:49:38] thomas-lists at mysnip dot de
Description:
------------
coming from
http://news.php.net/php.pecl.dev/4095
pointed here from
http://news.php.net/php.pecl.dev/4096
The APC docs don't tell anything about how memory is used in mmap
mode.
e.g. that
- maximum shm-segment-size told in /proc/sys/kernel/shmmax isn't in
effect here
- mmap uses only one segment and currently uses only the size specified
in apc-config for the shm-segments (see bug
http://pecl.php.net/bugs/bug.php?id=8609 ,
maybe that changes)
- currently one can only guess which mode is used but I think the
phpinfo tells at least "mmap is enabled" ( see bug
http://pecl.php.net/bugs/bug.php?id=8608 at
pecl.php.net)
As mmap-mode is the default nowadays in apc it would be good to tell
some more about its configuration :).
If one could add the pros/cons of using mmap over shm it would be great
too!
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Edit this bug report at http://bugs.php.net/?id=38678&edit=1