NGiNX performance degrades over time.
- by Rylea Stark
So here's the situation, I run a small cluster, Dedicated box for MySQL, and a dedicated PHP-FPM/NGINX box, Nginx talks to php-fpm via socket, As far as i can tell the problem does not lie in php-fpm, it lies somewhere in my configuration.
What happens, is the site loads instant for a few moments after starting and slowly starts to degrade to load times of greater than 2 seconds, eventually taking 12 seconds to complete a load, PHP is configured to close a child after 175 requests, and spawn 20 at start and have a max of 60.
Not really sure where the bottle neck is, most of my code is optimized and works flawlessly, but these issues with nginx will most likely force me to switch back over to Apache, And I really dont want to do that, NGINX.conf configuration below.
user www-data;
worker_processes 4;
worker_cpu_affinity 0001 0010 0100 1000;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
events {
worker_connections 512;
multi_accept on;
use epoll;
}
http {
include /etc/nginx/mime.types;
access_log /var/log/nginx/access.log;
resolver_timeout 5s;
satisfy all;
## Size Limits
limit_zone brainbug $binary_remote_addr 5m;
client_body_buffer_size 8k;
client_header_buffer_size 75M;
client_max_body_size 1k;
large_client_header_buffers 2 1k;
## Timeouts
client_body_timeout 60;
client_header_timeout 60;
keepalive_timeout 60;
send_timeout 60;
## General Options
ignore_invalid_headers on;
recursive_error_pages on;
sendfile on;
server_name_in_redirect off;
server_tokens off;
## TCP options
tcp_nodelay on;
#tcp_nopush on;
output_buffers 128 512k;
gzip on;
gzip_http_version 1.0;
gzip_comp_level 7;
gzip_proxied any;
gzip_min_length 0;
gzip_buffers 32 32k;
gzip_types text/plain text/html text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript image/jpeg image/png image/gif;
## Disable GZIP for MSIE 1-6
gzip_disable "MSIE [1-6].(?!.*SV1)";
## Set a vary header so downstream proxies don't send cached gzipped content to IE6
gzip_vary on;
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
