Nginx php-fpm Small VPS Optimization _nginx

Small VPS is limited by the system resources, the traffic is too large, more than the system can withstand the limit, a part of the request will be 502. In the case of adequate system resources, optimizing NGINX,PHP-FPM, as well as the system itself, achieves 2 purposes:

1, reasonable allocation of system resources, the limited resources to maximize utilization. Good steel is used on the blade.

2, minimizing disk I/O

First, the system main resources

[Root@xxxxxx nginx]# free-m  
       total    used    free   shared  buffers   cached  
Mem:      994    815    179     0    118  
-/+ buffers/cache:    453    540  
Swap:      0     0     0  
 
[root@xxxxxx nginx]# cat/proc/cpuinfo  
processor    : 0  
vendor_id    : Genuineintel  
CPU Family   : 6  
model      : The  
model name   : Intel (R) Xeon (r) CPU e5-2650 v2 @ 2.60GHz  
Stepping    : 4  
CPU MHz     : 2594.024  
Cache size   : 20480 KB  
physical ID   : 0  
siblings    : 1  
Core ID     : 0  
CPU Cores    : 1  
apicid     : 0  
initial apicid:0  
FPU       : Yes  
Fpu_exception  : Yes  
cpuid level   :  
WP       : yes  
flags      : FPU VME de PSE TSC MSR PAE MCE CX 8 APIC .... Omitted....  
bogomips    : 5188.04  
clflush size  :  
cache_alignment:64 Address  
sizes  : + bits Physical, bits virtual  

Second, PHP-FPM optimization

PM =           Dynamic//number of processes, dynamically allocated
Pm.max_children =       Max//maximum number
of processes pm.start_servers = 8//number       of processes just started
Pm.min_ Spare_servers = 8     //The minimum number of processes when the server is idle
pm.max_spare_servers =     Maximum number of processes when the server is idle

php_flag[display_errors =  off//run for a period of time, turn off the error message

PHP-FPM a process takes up between 20m-30m, top look at the percentage of memory in PHP-FPM, the estimate will know. Max_children,max_spare_servers not bigger is better.

Third, nginx optimization

1, install the latest version of stability

# Vim/etc/yum.repos.d/nginx.repo  //Add the following content

[Nginx]
name=nginx repo
baseurl=http://nginx.org/ packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

# yum install nginx   /update Nginx

2, optimize configuration Nginx

Worker_processes Auto;   Set Auto,nginx process dynamic Allocation

# Access_log  //comment out, reduce I/O
# log_format  //comment out, reduce I/O

gzip on;     Open gzip
gzip_min_length 1k;
Gzip_buffers   4 16k;
Gzip_http_version 1.1;
Gzip_comp_level 5;    1-9, the greater the compression the better, the greater the consumption of resources
gzip_types    text/plain application/x-javascript text/css application/xml;
Gzip_vary on;

Worker_processes for small VPS, set to 1, 2 is also possible. It's enough.

For small VPS, the above NGINX,PHP-FPM optimization configuration is beneficial.

Four, Linux boot process optimization

Copy Code code as follows:

# chkconfig--list |grep on

View the boot-initiated process and turn off the process without the need to start. If you do not know, it is best to check before deciding whether to close.