Reducing IO caused by nginx
- by glumbo
I have a lot of free RAM but my IO is always 100 %util or very close. What ways can I reduce IO by using more RAM? My iotop shows nginx worker processes with the highest io rate. This is a file server serving files ranging from 1mb to 2gb. Here is my nginx.conf
#user nobody;
worker_processes 32;
worker_rlimit_nofile 10240;
worker_rlimit_sigpending 32768;
error_log logs/error.log crit;
#pid logs/nginx.pid;
events {
worker_connections 51200;
}
http {
include mime.types;
default_type application/octet-stream;
access_log off;
limit_conn_log_level info;
log_format xfs '$arg_id|$arg_usr|$remote_addr|$body_bytes_sent|$status';
sendfile off;
tcp_nopush off;
tcp_nodelay on;
directio 4m;
output_buffers 3 512k;
reset_timedout_connection on;
open_file_cache max=5000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors on;
client_body_buffer_size 32k;
server_tokens off;
autoindex off;
keepalive_timeout 0;
#keepalive_timeout 65;
