eAccelerator is a fork of TurckMMCache
( http://sourceforge.net/project/turckmm-cache/ by Dmitry Stogov )
eAccelerator stores compiled PHP scripts in shared memory and executes code
directly from it. It creates locks only for short time, while searching
compiled PHP script in the cache, so one script can be executed simultaneously
by several engines. Files that can't fit in shared memory are cached on disk
only.
eAccelerator contains a PHP encoder and loader. You can encode PHP scripts
using encoder.php in order to distribute them without sources. Encoded files
can be run on any site which runs PHP with eAccelerator. The sources of
encoded scripts can't be restored because they are stored in a compiled form
and the encoded version doesn't contain the source. Of course, some internals
of the scripts can be restored with different reverse engineering tools
(disassemblers, debuggers, etc), but it is not trivial.
eAccelerator is compatible with Zend Optimizer's loader. Zend Optimizer must
be installed after eAccelerator in php.ini. If you don't use scripts encoded
with Zend Encoder then we do not recommend you install Zend Optimizer with
eAccelerator.
eAccelerator does not work in CGI mode.
How to Install eAccelerator
cd /
wget http://unc.dl.sourceforge.net/source...-0.9.2a.tar.gz
tar xvzf eaccelerator-0.9.2a.tar.gz
cd eaccelerator
export PHP_PREFIX="/usr/local"
$PHP_PREFIX/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=$PHP_PREFIX/bin/php-config
make install
pico -w /usr/local/lib/php.ini
CTRL w
Find this: ;Windows Extensions
for zend
zend_extension="/eaccelerator/modules/eaccelerator.so"
eaccelerator.shm_size="16"
#^-The amount of shared memory (in megabytes) that eAccelerator will use
eaccelerator.cache_dir="/home/eaccelerator"
#^-This is the folder where it cash the compiled scripts
# you can use a second drive to be faster such as "/backup/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
for PHP
extension="/eaccelerator/modules/eaccelerator.so"
eaccelerator.shm_size="16"
#^-This is the folder limit (16mb), you can make it larger if you wish
eaccelerator.cache_dir="/home/eaccelerator"
#^-This is the folder where it cash the compiled scripts
# you can use a second drive to be faster such as "/backup/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
mkdir /home/eaccelerator
chmod 0777 /home/eaccelerator
httpd restart
or
service httpd restart
=====================
=====================
Configuration Options
---------------------
eaccelerator.shm_size
The amount of shared memory (in megabytes) that eAccelerator will use.
"0" means OS default. Default value is "0".
eaccelerator.cache_dir
The directory that is used for disk cache. eAccelerator stores precompiled
code, session data, content and user entries here. The same data can be
stored in shared memory also (for more quick access). Default value is
"/tmp/eaccelerator".
eaccelerator.enable
Enables or disables eAccelerator. Should be "1" for enabling or "0" for
disabling. Default value is "1".
eaccelerator.optimizer
Enables or disables internal peephole optimizer which may speed up code
execution. Should be "1" for enabling or "0" for disabling. Default value
is "1".
eaccelerator.debug
Enables or disables debug logging. Should be "1" for enabling or "0" for
disabling. Default value is "0".
eaccelerator.check_mtime
Enables or disables PHP file modification checking . Should be "1" for
enabling or "0" for disabling. You should set it to "1" if you want to
recompile PHP files after modification. Default value is "1".
eaccelerator.filter
Determine which PHP files must be cached. You may specify the number of
patterns (for example "*.php *.phtml") which specifies to cache or not to
cache. If pattern starts with the character "!", it means to ignore files
which are matched by the following pattern. Default value is "" that means
all PHP scripts will be cached.
eaccelerator.shm_max
Disables putting large values into shared memory by " eaccelerator_put() "
function. It indicates the largest allowed size in bytes (10240, 10K, 1M).
The "0" disables the limit. Default value is "0".
eaccelerator.shm_ttl
When eaccelerator fails to get shared memory for new script it removes all
scripts which were not accessed at last "shm_ttl" seconds from shared
memory. Default value is "0" that means - don't remove any files from
shared memory.
eaccelerator.shm_prune_period
When eaccelerator fails to get shared memory for new script it tryes to
remove old script if the previous try was made more then
"shm_prune_period" seconds ago. Default value is "0" that means - don't
try to remove any files from shared memory.
eaccelerator.shm_only
Enables or disables caching of compiled scripts on disk. It has no effect
on session data and content caching. Default value is "0" that means - use
disk and shared memory for caching.
eaccelerator.compress
Enables or disables cached content compression. Default value is "1" that
means enable compression.
eaccelerator.compress_level
Compression level used for content caching. Default value is "9" which is
the maximum value
eaccelerator.keys
eaccelerator.sessions
eaccelerator.content
Determine where keys, session data and content will be cached. The possible
values are:
"shm_and_disk" - cache data in shared memory and on disk (default value)
"shm" - cache data in shared memory or on disk if shared memory
is full or data size greater then "eaccelerator.shm_max"
"shm_only" - cache data in shared memory
"disk_only" - cache data on disk
"none" - don't cache data
eAccelerator API
----------------
eaccelerator_put($key, $value, $ttl=0)
puts the $value into shard memory for $ttl seconds.
eaccelerator_get($key)
returns the value from shared memory which was stored by eaccelerator_put()
or null if it is not exists or was expired.
eaccelerator_rm($key)
removres the $key from shared memory
eaccelerator_gc()
removes all expired keys from shared memory
eaccelerator_lock($lock)
creates a lock with specified name. The lock can be released by function
eaccelerator_unlock() or automatic on the end of request.
For Example:
eaccelerator_cache_page($key, $ttl=0)
caches the full page for $ttl seconds. |
