After upgrade and recompilation, issue is much less important, it increase only by 0.17% for an antire stats processing cycle, but issue remain unsolved....



[root@web1 ~]# nginx -V
nginx version: nginx/1.11.12
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC)
built with LibreSSL 2.5.1
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/etc/nginx/modules --with-pcre=./pcre-8.40 --with-pcre-jit --with-zlib=./zlib-1.2.11 --with-openssl=./libressl-2.5.1 --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error_log --http-log-path=/var/log/nginx/access_log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nobody --group=nobody --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --add-dynamic-module=naxsi-http2/naxsi_src --with-file-aio --with-threads --with-stream --with-stream_ssl_module --with-http_slice_module --with-compat --with-http_v2_module --with-http_geoip_module=dynamic --add-dynamic-module=ngx_pagespeed-release-1.11.33.4-beta --add-dynamic-module=/usr/local/rvm/gems/ruby-2.3.1/gems/passenger-5.1.2/src/nginx_module --add-dynamic-module=ngx_brotli --add-dynamic-module=echo-nginx-module-0.60 --add-dynamic-module=headers-more-nginx-module-0.32 --add-dynamic-module=ngx_http_redis-0.3.8 --add-dynamic-module=redis2-nginx-module --add-dynamic-module=srcache-nginx-module-0.31 --add-dynamic-module=ngx_devel_kit-0.3.0 --add-dynamic-module=set-misc-nginx-module-0.31 --add-dynamic-module=ModSecurity-nginx --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --with-ld-opt=-Wl,-E


#Core Functionality

user nobody;
worker_processes 8;
pid /var/run/nginx.pid;
pcre_jit on;
error_log /var/log/nginx/error_log;
#error_log /home/abackup/debug.log debug;
worker_rlimit_nofile 300000;

#Load Dynamic Modules
include /etc/nginx/modules.d/*.load;

events {
worker_connections 8192;
use epoll;
multi_accept on;
accept_mutex off;
}

#Settings For other core modules like for example the stream module
include /etc/nginx/conf.d/main_custom_include.conf;

#Settings for the http core module
include /etc/nginx/conf.d/http_settings_custom.conf;