Ok although I dont know the scale of your site that formulae always works, A
decent response time for an application is 0.05s, even most forums will
return 0.2s so if you are getting values higher than that then your problem
is in your script.

This isnt really a nginx problem, its more PHP related.

On Tue, Oct 26, 2010 at 8:24 PM, Xin Liu <liuxin84@gmail.com> wrote:

> It's getting worse and worse.
> From php-fpm.log, there is no error.
> But from nginx error.log, there are lots of errors
>
>
> [error] 21819#0: *16895 connect() to unix:/tmp/php-cgi.sock
> failed (11: Resource temporarily unavailable) while connecting to upstream,
> client: 119.145.137.49, server: localhost,......
>
>
> On Tue, Oct 26, 2010 at 4:08 PM, SplitIce <mat999@gmail.com> wrote:
>
>> well 128 children is too much, work out the average response time of your
>> script then use this formulae.
>>
>> requests per second * average response time = number of workers or max
>> children
>>
>> Generally a figure no higher than 30 is needed unless your script needs
>> improvement.
>>
>>
>> On Tue, Oct 26, 2010 at 6:59 PM, Xin Liu <liuxin84@gmail.com> wrote:
>>
>>> I tried to use static mode, and set pm.max_children = 128.
>>> Then php-fpm will take up 100% cpu.
>>> My question is that, for a server with I3 and 4G memory, what's the right
>>> parameter for nginx.conf and php-fpm.conf.
>>>
>>>
>>>
>>> On Tue, Oct 26, 2010 at 2:45 PM, SplitIce <mat999@gmail.com> wrote:
>>>
>>>> Im persuming you have an opcode cache?
>>>>
>>>> Also try using php-fpm in static mode, dynamic mode resulted in
>>>> 502/504's and high CPU usage for me.
>>>>
>>>> On Tue, Oct 26, 2010 at 5:42 PM, Xin Liu <liuxin84@gmail.com> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> For yesterday, my server is getting slower and slower...
>>>>> Sometime php-fpm is taking up 100% cpu, and there are about 1G free
>>>>> memory.
>>>>> Everytime I restart nginx and php-fpm, webserver will be OK. But after
>>>>> about 15minutes, it'll be very slow.....
>>>>>
>>>>>
>>>>> My server is running debian, and web server is
>>>>> Nginx+php-fpm+memcached+mysql.
>>>>> Hardware environment is I3 and 4G memory. It's that it's not hardware
>>>>> problem.
>>>>>
>>>>> And below is my configurations, anyone can give me a suggestion about
>>>>> this issue? How can I optimize server performance?
>>>>>
>>>>> *Nginx.conf*
>>>>>
>>>>> 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 {
>>>>> use epoll;
>>>>> worker_connections 10240;
>>>>> multi_accept on;
>>>>> }
>>>>> http {
>>>>> include /etc/nginx/mime.types;
>>>>> default_type application/octet-stream;
>>>>> access_log /var/log/nginx/access.log;
>>>>> sendfile on;
>>>>> tcp_nopush on;
>>>>> tcp_nodelay on;
>>>>> server_names_hash_bucket_size 128;
>>>>> server_name_in_redirect off;
>>>>> server_tokens off;
>>>>> keepalive_timeout 60;
>>>>> send_timeout 60;
>>>>> client_header_buffer_size 4k;
>>>>> large_client_header_buffers 4 4k;
>>>>> client_max_body_size 20m;
>>>>> gzip on;
>>>>> gzip_min_length 1k;
>>>>> gzip_buffers 4 16k;
>>>>> gzip_http_version 1.0;
>>>>> gzip_comp_level 9;
>>>>> gzip_types text/plain text/css image/x-icon image/bmp
>>>>> application/x-javascript application/xml;
>>>>> gzip_vary on;
>>>>> fastcgi_connect_timeout 300;
>>>>> fastcgi_send_timeout 300;
>>>>> fastcgi_read_timeout 300;
>>>>> fastcgi_buffer_size 64k;
>>>>> fastcgi_buffers 4 64k;
>>>>> fastcgi_busy_buffers_size 128k;
>>>>> fastcgi_temp_file_write_size 128k;
>>>>> include /etc/nginx/conf.d/*.conf;
>>>>> include /etc/nginx/sites-enabled/*;
>>>>> }
>>>>>
>>>>>
>>>>> *php5-fpm.conf*
>>>>>
>>>>> listen = 127.0.0.1:9000
>>>>> user = www-data
>>>>> group = www-data
>>>>> pm = dynamic
>>>>> pm.max_children = 66
>>>>> pm.start_servers = 8
>>>>> pm.min_spare_servers = 5
>>>>> pm.max_spare_servers = 16
>>>>> pm.max_requests = 512
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> nginx mailing list
>>>>> nginx@nginx.org
>>>>> http://nginx.org/mailman/listinfo/nginx
>>>>>
>>>>>
>>>>
>>>>
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