wget http://www.monkey.org/~provos/libevent-1.4.13-stable.tar.gz
wget http://memcached.googlecode.com/files/memcached-1.4.4.tar.gz
wget http://pecl.php.net/get/memcache-2.2.5.tgz
tar zxvf libevent-1.4.13-stable.tar.gz
tar zxvf memcached-1.4.4.tar.gz
cd libevent-1.4.13-stable
./configure --prefix=/usr
make
make install
ln -s /usr/lib/libevent-1.4.so.2 /usr/lib64/libevent-1.4.so.2
cd memcached-1.4.4
./configure --prefix=/home/memcached --enable-64bit
make
make install
/home/memcached/bin/memcached -d -m 1024 -p 11211 -u root

参数说明:
-d 启动为守护进程
-m 分配给Memcached使用的内存数量,单位是MB,默认为64MB -u 运行Memcached的用户,仅当作为root运行时 -l 监听的服务器IP地址,默认为环境变量INDRR_ANY的值 -p 设置Memcached监听的端口,最好是1024以上的端口 -c 设置最大并发连接数,默认为1024 -P 设置保存Memcached的pid文件,与-d选择同时使用

cd memcache-2.2.5
/home/php/bin/phpize
./configure --prefix=/home/phpmemcache --with-php-config=/home/php/bin/php-config
make
make install
sed –i ‘s:./:/home/php/lib/php/extensions/no-debug-zts-20060613/:g’ /home/php/lib/php.ini
sed –i ‘/zip.dll/aextension=memcache.so’ /home/php/lib/php.ini
cat >> /cache/data/test.php <<EOF
<?php
$memcache = new Memcache;
/*$memcache->connect('localhost', 11211) or die ("Could not connect");
/*addServer方式更能体现分布式的优势,也完成故障转移,就是转移的时候HIT要重新开始*/
$memcache->addServer('127.0.0.1', 11211);
$memcache->addServer('192.168.0.2', 11212);
$version = $memcache->getVersion();
echo "Server's version: ".$version."<br/>n";
$tmp_object = new stdClass;
$tmp_object->str_attr = 'test';
$tmp_object->int_attr = 123;
$memcache->set('key', $tmp_object, false, 10) or die ("Failed to save data at the server");
echo "Store data in the cache (data will expire in 10 seconds)<br/>n";
$get_result = $memcache->get('key');
echo "Data from the cache:<br/>n";
var_dump($get_result);
?>
EOF
curl <a href="http://localhost/test.php">http://localhost/test.ph</a>
Server's version: 1.4.4<br/>
Store data in the cache (data will expire in 10 seconds)<br/>
Data from the cache:<br/>
object(stdClass)#3 (2) {
["str_attr"]=>
string(4) "test"
["int_attr"]=>
int(123)
}
# telnet localhost 11211
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
stats
STAT pid 3015
STAT uptime 3185                                 memcached运行的秒数
STAT time 1267090234
STAT version 1.4.4
STAT pointer_size 64
STAT rusage_user 0.000000
STAT rusage_system 0.000000
STAT curr_connections 10
STAT total_connections 18
STAT connection_structures 11
STAT cmd_get 3                                   查询缓存的次数
STAT cmd_set 5                                   设置key=>value的次数
STAT cmd_flush 0
STAT get_hits 3                                    缓存命中的次数
STAT get_misses 0
STAT delete_misses 0
STAT delete_hits 0
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 2697
STAT bytes_written 1150
STAT limit_maxbytes 1073741824
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT bytes 1255
STAT curr_items 2
STAT total_items 5
STAT evictions 0
END

完成~~~以上仅为试验,如果只是一个小web单机环境的话,只需要php+eaccelerator(或者apc/xcache等)就足够了。用php+memcached+mysql-proxy+mysql是大型网站架构的事情~~