php5-memcached is slightly faster than php5-memcache

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php5-memcached is slightly faster than php5-memcache

php5-memcached and php5-memcache are two PHP components that operate memcached. They were developed by different people.

php official website lists their respective usage methods:

1. First, First install apache:

sudo apt-get update
sudo apt-get install apache2

2. Then install php5:

sudo apt-get install php5 libapache2-mod-php5 php5-mcrypt

3. Then install memcached:

sudo apt-get install memcached

4. Then install php5-memcached and php5-memcache:

sudo apt-get install php5-memcache

sudo apt-get install php5-memcached

5. Finally restart apache2:

sudo service apache2 restart

6. Edit test.php as follows:

<span><?php
// Initialize values: 10000 keys of 20 bytes with 40 bytes of data
$c = 10000;
$values = array();
for ($i=0;$i<$c;$i++) $values[sprintf('%020s',$i)]=sha1($i);
echo "memcache vs memcached: $c keys\n";

// Memcached
$m = new Memcached();
$m->addServer('localhost', 11211);
$start = microtime(true);
foreach ($values as $k => $v) $m->set($k, $v, 3600);
$time = microtime(true)-$start;
echo "memcached set: $time\n";
$start = microtime(true);
foreach ($values as $k => $v) $m->get($k);
$time = microtime(true)-$start;
echo "memcached get: $time\n";

// Memcache
$m = new Memcache();
$m->addServer('localhost', 11211);
$start = microtime(true);
foreach ($values as $k => $v) $m->set($k, $v, 0, 3600);
$time = microtime(true)-$start;
echo "memcache set: $time\n";
$start = microtime(true);
foreach ($values as $k => $v) $m->get($k);
$time = microtime(true)-$start;
echo "memcache get: $time\n";
?></span>

7. Run http://machinename/test.php or php /var/www/html/test.php

root@machinename # php /var/www/html/test.php
memcache vs memcached : 10000 keys

~

root@machinename

# php /var/www/html/test2.phpmemcache vs memcached: 10000 keys
Reference documents:
1. https://www.digitalocean.com/community/tutorials/ how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu

2. https://www.digitalocean.com/community/tutorials/how-to-install-and-use-memcache -on-ubuntu-14-04

3. https://www.leaseweb.com/labs/2013/03/memcache-vs-memcached-php-benchmark/