How do I install Xcache opcode cacher for PHP 5 under RHEL / CentOS version 5.0 server?
XCache is a open-source opcode cacher, which means that it accelerates the performance of PHP on servers. It optimizes performance by removing the compilation time of PHP scripts by caching the compiled state of PHP scripts into the shm (RAM) and uses the compiled version straight from the RAM. This will increase the rate of page generation time by up to 5 times as it also optimizes many other aspects of php scripts and reduce serverload.
Step # 1: Download xcahce source code
Use wget command to download latest stable release:
# cd /opt
# wget http://xcache.lighttpd.net/pub/Releases/1.2.1/xcache-1.2.1.tar.gz
Step # 2: Untar tar ball
Use tar command:
# tar -zxvf xcache-1.2.1.tar.gz
# cd xcache-1.2.1
Step # 2: Compile and install xcahce
Use phpize command to prepare xcache as a PHP extension for compiling:
# phpize
Configure, compile and install xcache:
# ./configure --enable-xcache
# make
# make install
Default xcache.so installation location
- 64 bit PHP module installed at /usr/lib64/php/modules/xcache.so
- 32 bit PHP module installed at /usr/lib/php/modules/xcache.so
Step # 3: Create xcache.ini file
Under RHEL / CentOS, you place php modules configuration at /etc/php.d/ directory:
# cd /etc/php.d/
Create xcache.ini file:
# vi xcache.ini
Append configuration directives:
[xcache-common] ; change me - 64 bit php => /usr/lib64/php/modules/xcache.so ; 32 bit php => /usr/lib/php/modules/xcache.so zend_extension = /usr/lib64/php/modules/xcache.so [xcache.admin] xcache.admin.auth = On xcache.admin.user = "mOo" ; xcache.admin.pass = md5($your_password) xcache.admin.pass = "" [xcache] xcache.shm_scheme = "mmap" xcache.size = 32M xcache.count = 1 xcache.slots = 8K xcache.ttl = 3600 xcache.gc_interval = 300 ; Same as aboves but for variable cache ; If you don't know for sure that you need this, you probably don't xcache.var_size = 0M xcache.var_count = 1 xcache.var_slots = 8K xcache.var_ttl = 0 xcache.var_maxttl = 0 xcache.var_gc_interval = 300 ; N/A for /dev/zero xcache.readonly_protection = Off xcache.mmap_path = "/dev/zero" xcache.cacher = On xcache.stat = On
Save and close the file.
Alternatively, you can also copy default xcache.ini to /etc/php.d/
# cp xcache.ini /etc/php.d/
# vi /etc/php.d/xcache.ini
Restart your Apache web server:
# service httpd restart
If you are using Lighttpd web server, enter:
# service lighttpd restart
Step # 4: Make sure xcache is working
Type the following command for verification:
$ php -v
Output:
PHP 5.1.6 (cli) (built: Nov 20 2007 11:11:52)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
with XCache v1.2.1, Copyright (c) 2005-2007, by mOo
You should see line “XCache v1.2.1, Copyright (c) 2005-2007, by mOo“
22 comment
Currently in Freebsd with php5, apache22 and xdebug2,
xcache could not work with this combination.
Could you figure out to use xcache with above ones?
Thanks
IT only works with the following PHP cvs branches versions (php 5.0 is not supported, get php 5.2)
PHP_4_3
PHP_4_4
PHP_5_1
PHP_5_2
PHP HEAD(6.x)
For me this didn’t work untill I enabled two settings in php.ini file
; Directory in which the loadable extensions (modules) reside.
extension_dir = “/usr/local/lib/php/extensions/no-debug-non-zts-20060613/”
; Dynamic Extensions
extension=xcache.so
phpize isn’t found on my CentOS4 server.
is there an alternate command?
Ken,
Install php-devel package – which lets you compile dynamic extensions to PHP. This package has phpize command. Use yum command to install the same.
can you pls write exactly what command i have to give ?
thank you very much
i gave command phpize => ” command not found”
i gave command ” whereis phpize ” => and display => ” phpize: ”
I gave command
yum -y install php-devel
but display that error
Finished Dependency Resolution
php-devel-5.1.6-39.el5_8.x86_64 from updates has depsolving problems
–> Missing Dependency: php = 5.1.6-39.el5_8 is needed by package php-devel-5.1.6-39.el5_8.x86_64 (updates)
Error: Missing Dependency: php = 5.1.6-39.el5_8 is needed by package php-devel-5.1.6-39.el5_8.x86_64 (updates)
You could try using –skip-broken to work around the problem
You could try running: package-cleanup –problems
package-cleanup –dupes
rpm -Va –nofiles –nodigest
any ideas how to fix this ?
thank you
Is there any solution on that problem , without downgrade php :)
Any RPM available for RHEL/CentOS 5?
Very nice article. I installed with the help of this. In the middle I faced a problem when run the command ‘phpize’. I got an error like “bash: phpize: command not found”. Instead of ‘phpize’ I run ‘yum -y install php-devel’. Then again I continue from ‘phpize’. It’s installed. Thanx for your article.
-Dharmaraj.A
Could not get this to work with Apache, MPM Worker and PHP as fastcgi. PHP as mod_php works fine.
Any extra requirement for fastcgi?
Can i use xcache and Eaccelerator at the same time? I use vbulletin also..
PHP 5.2.6 (cli) (built: Sep 3 2008 06:59:35)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
with eAccelerator v0.9.5.3, Copyright (c) 2004-2006 eAccelerator, by eAccelerator
with the ionCube PHP Loader v3.1.32, Copyright (c) 2002-2007, by ionCube Ltd., and
with Zend Extension Manager v1.2.2, Copyright (c) 2003-2007, by Zend Technologies
with Zend Optimizer v3.3.3, Copyright (c) 1998-2007, by Zend Technologies
@Sezai,
Only use one of them at a time. Xcache is the best.
Thank you for the great article! Oh, and in Step #3, there’s a funny typo: xcahce.ini :) Cheers
Hi, I’m facing a few problems.
1: After running #make install,
What gets installed is: /usr/local/lib/php/extensions/no-debug-non-zts
2: #cd /etc/php.d/… php.d is not a directoy in my setup. Where would I look alternitavely?
/etc/php5/conf.d/
/etc/php5/conf.d/ AND /etc/php5/conf.d/ are not exist !!!!!!!!
Hi VIVEK GITE
Great article, after I followed your instructions which were clear I ran the command “php -v” and I got the output below, is my Xcache running as intended? Or do I need to make some adjustments? If so do you have any idea why I got the “PHP Warning: PHP Startup: memcache: Unable to initialize module” error?
Best regards
Adrian
===================
[root@server php.d]# php -v
PHP Warning: PHP Startup: memcache: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: PHP Startup: memcache: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP 5.2.13 (cli) (built: Mar 2 2010 15:56:41)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
with XCache v1.2.1, Copyright (c) 2005-2007, by mOo
Works really great…Vivek you rock man.
Hi Vivek;
Where do you think wrong?
root@server [~]# php -v
Failed loading /usr/lib64/php/modules/xcache.so: /usr/lib64/php/modules/xcache.so: cannot open shared object file: No such file or directory
PHP 5.2.9 (cli) (built: Oct 20 2010 17:50:30)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
Hello,
I am instaling on a RedHat EL4 workstation, with php 5.1.3 and
I have this pb :
/usr/include/php/ext/date/lib/timelib_structs.h:24:28: error: timelib_config.h: No such file or directory
a solution is to just use:
export CFLAGS=-I/usr/include/php/ext/date/lib
before the
./configure –enable-xcache
Oups , as matter of fact is for php 5.1.2