Nginx Thread Pools in NGINX Boost Performance 9x!

rdan · Aug 31, 2015

Why Centminmod doesn't have this added by default?
Boosting NGINX Performance 9x with Thread Pools
Code:
# in the 'http', 'server', or 'location' context
aio threads;
I just added it on my nginx.conf under http block .

pamamolf · Aug 31, 2015

Can you please post a sample of the code that you added and did you use any parameters for settings for thread pools?

rdan · Aug 31, 2015

Like this: Saved diff vm34zkr3 - Diff Checker

pamamolf · Aug 31, 2015

Ok great thanks

I was ask for a sample as i thought that you used custom values for threads that's why

Anyway it is great and i hope George will do some magic so we will be able when we enable it to get some stats for each pool from ssh like php pools:
Code:
lynx --dump  http://127.0.0.1/phpstatus

pool:  www
process manager:  static
start time:  28/Jun/2012:21:24:51 +0400
start since:  75
accepted conn:  196
listen queue:  0
max listen queue:  0
listen queue len:  0
idle processes:  4
active processes:  1
total processes:  5
max active processes: 1
max children reached: 0
PHP Status explained:

eva2000 · Aug 31, 2015

Doesn't apply to all situations and is system hardware environment specific as not all servers will have sufficient resources to feed the threads

Still Not a Silver Bullet
After all our fears about blocking operations and some exciting results, probably most of you already are going to configure thread pools on your servers. Don’t hurry.

The truth is that fortunately most read and send file operations do not deal with slow hard drives. If you have enough RAM to store the data set, then an operating system will be clever enough to cache frequently used files in a so-called “page cache”.

The page cache works pretty well and allows NGINX to demonstrate great performance in almost all common use cases. Reading from the page cache is quite quick and no one can call such operations “blocking.” On the other hand, offloading to a thread pool has some overhead.

So if you have a reasonable amount of RAM and your working data set isn’t very big, then NGINX already works in the most optimal way without using thread pools.

Offloading read operations to the thread pool is a technique applicable to very specific tasks. It is most useful where the volume of frequently requested content doesn’t fit into the operating system’s VM cache. This might be the case with, for instance, a heavily loaded NGINX-based streaming media server. This is the situation we’ve simulated in our benchmark.
Click to expand...

Don't believe there's any stats for these thread pools either

Centmin Mod Nginx is compiled with threads support enabled Core functionality

nginx -V
nginx version: nginx/1.9.4
built by clang 3.4.2 (tags/RELEASE_34/dot2-final)
built with LibreSSL 2.2.3
TLS SNI support enabled
configure arguments: --with-ld-opt='-lrt -ljemalloc -Wl,-z,relro -Wl,-rpath,/usr/local/lib' --with-cc-opt='-m32 -mtune=generic -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wno-deprecated-declarations -Wno-unused-parameter -Wno-unused-const-variable -Wno-conditional-uninitialized -Wno-mismatched-tags -Wno-c++11-extensions -Wno-sometimes-uninitialized -Wno-parentheses-equality -Wno-tautological-compare -Wno-self-assign -Wno-deprecated-register -Wno-deprecated -Wno-invalid-source-encoding -Wno-pointer-sign -Wno-parentheses -Wno-enum-conversion' --sbin-path=/usr/local/sbin/nginx --conf-path=/usr/local/nginx/conf/nginx.conf --with-ipv6 --with-http_ssl_module --with-http_v2_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_sub_module --with-http_addition_module --with-http_image_filter_module --with-http_secure_link_module --with-http_realip_module --with-http_geoip_module --with-openssl-opt=enable-tlsext --add-module=../ngx-fancyindex-ngx-fancyindex --add-module=../ngx_cache_purge-2.3 --add-module=../nginx-accesskey-2.0.3 --add-module=../nginx-http-concat-master --add-module=../openresty-memc-nginx-module-4f6f78f --add-module=../openresty-srcache-nginx-module-ffa9ab7 --add-module=../ngx_devel_kit-0.2.19 --add-module=../set-misc-nginx-module-0.29 --add-module=../echo-nginx-module-0.58 --add-module=../redis2-nginx-module-0.12 --add-module=../ngx_http_redis-0.3.7 --add-module=../lua-nginx-module-0.9.16 --add-module=../lua-upstream-nginx-module-0.03 --add-module=../lua-upstream-cache-nginx-module-0.1.1 --add-module=../nginx_upstream_check_module-0.3.0 --add-module=../nginx-module-vts --add-module=../headers-more-nginx-module-0.261 --with-openssl=../libressl-2.2.3 --with-libatomic --with-threads --with-stream --with-stream_ssl_module --with-pcre=../pcre-8.37 --with-pcre-jit --add-module=../ngx_pagespeed-release-1.9.32.6-beta
Click to expand...

upgrade81 · Feb 9, 2019

Hi everyone, so to enable thread pool just insert this line?
aio threads;

eva2000 · Feb 9, 2019

upgrade81 said: ↑

Hi everyone, so to enable thread pool just insert this line?
aio threads;
Click to expand...

yup

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