Before configuring the Web Server and the PHP Fast page Manager for deliver High Performance PHP Enterprise Application, the Linux kernel where the machine is running need some settings to be optimized.

Step 1. Open a SSH Terminal into your machine.

Step 2. Change Schedulers.

$ sudo grubby --update-kernel=ALL --args="elevator=noop"

Step 3. Update Kernel settings.

$ sudo nano /etc/sysctl.conf

Replace the content of this file with:

#####  Performance kernel conf
##     Dev: Ruben Elizondo
##
vm.swappiness = 1
fs.file-max = 5000000
net.core.netdev_max_backlog = 400000
net.core.optmem_max = 10000000
net.core.rmem_default = 10000000
net.core.rmem_max = 10000000
net.core.somaxconn = 100000
net.core.wmem_default = 10000000
net.core.wmem_max = 10000000
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.tcp_congestion_control = bic
net.ipv4.tcp_ecn = 0
net.ipv4.tcp_max_syn_backlog = 12000
net.ipv4.tcp_max_tw_buckets = 2000000
net.ipv4.tcp_mem = 30000000 30000000 30000000
net.ipv4.tcp_rmem = 30000000 30000000 30000000
net.ipv4.tcp_sack = 1
net.ipv4.tcp_syncookies = 0
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_wmem = 30000000 30000000 30000000
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
kernel.shmmax=1073741824
kernel.msgmni=1024
kernel.sem=250 32000 32 1024

save the file.

Step 4. Make open files higher value.

$ sudo nano /etc/security/limits.conf

*** Add the following line right below #@student

*                -	 nofile          16384

save the file.

Step 5. reboot your machine

$ sudo reboot now