php-fpm

install php-fpm

# Ubuntu
sudo apt-get install python-software-properties;
sudo add-apt-repository ppa:ondrej/php5-5.6;
sudo apt-get update;
sudo apt-get install php5-fpm php5-cli php5-curl 
php5-gd php5-json php5-mcrypt php5-mysqlnd;
# CentOS
sudo rpm -Uvh 
http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm;
sudo rpm -Uvh 
http://rpms.famillecollet.com/enterprise/remi-release-7.rpm;
sudo yum -y --enablerepo=epel,remi,remi-php56 install php-fpm php-cli php-gd 
php-mbstring php-mcrypt php-mysqlnd php-opcache php-pdo php-devel;

global config

On Ubuntu, the primary PHP-FPM cofiguration file is /etc/php5/fpm/php-fpm.conf.
On CentOS, the primary PHP-FPM configuration file is /etc/php-fpm.conf.

emergency_restart_threshold = 10
emergency_restart_interval = 1m

pool config

include=/etc/php5/fpm/pool.d/*.conf      //pool 目录定义
include=/etc/php-fpm.d/*.conf