How to tune nginx for 800-1200 concurrent connections?

[SplitIce]

are the images served through PHP? if so make them static and it will
increase thoughrougput by tons.

Additionally you could possibly reduce worker_processes to 4-6 to reduce
context switching.

On Tue, Sep 20, 2011 at 12:29 AM, dullnicker <nginx-forum at nginx.us> wrote:

> Dear all,
>
> I run nginx as stand-alone webserver (not as Apache proxy) on an image
> gallery website. The server has to handle up to 1,200 concurrent
> connections on Port 80, the average number throughout the day is around
> 500-600. During peak times, the server suffers a bit under its load and
> I wonder whether there is anything that I can do to decrease the load by
> tuning the nginx config. I should add that Apache went nuts handling the
> site and therefore nginx is already a great relief to have. The site has
> just around 3,000 unique visitors but up to 250,000 pageviews per day.
>
> Here are the relevant server specs:
> --------------------------------------------
> 4 cores at 2.1 GHz
> 1 GB RAM (average free RAM is around 800 MB even during peak times)
>
> Here is my current nginx.conf:
> -------------------------------------
>
> user              nginx nginx;
> worker_processes  8; # default: 2
>
>
> error_log       logs/error.log;
>
> pid               logs/nginx.pid;
>
> events {
>    worker_connections  2048; # default: 1024
> }
>
> http {
>    include       mime.types;
>    default_type  application/octet-stream;
>    client_max_body_size 64M;
>    sendfile        on;
>    tcp_nopush      on;
>
>    keepalive_timeout  20; #default: 3
>
>    gzip  on;
>    gzip_comp_level 2;
>    gzip_proxied any;
>    gzip_types      text/plain text/css application/x-javascript
> text/xml application/xml application/xml+rss text/javascript;
>
>    server_tokens off;
>
>    include /etc/nginx/conf.d/*;
> }
>
> Here are the fastcgi settings (The gallery is heavily PHP-driven):
>
> ------------------------------------------------------------------------------
>
>   include fastcgi_params;
>    fastcgi_intercept_errors on;
>    fastcgi_index index.php;
>    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
>    try_files $uri =404;
>    fastcgi_pass 127.0.0.1:9000;
>
> I would appreciate your comments and suggestions a lot - Thank you very
> much in advance!
>
> Kind regards
> -A
>
> Posted at Nginx Forum:
> http://forum.nginx.org/read.php?2,215383,215383#msg-215383
>
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>
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