there are six cores with 32 GB of RAM. I have nginx 0.7.X and php5-fpm with php5.3 (from dotdeb.org). Important configuration files:
nginx.conf
user www-data;
worker_processes 2;
events {
worker_connections 4096;
}
location ~ \.php$ {
fastcgi_pass unix:/tmp/fcgi.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /var/www$fastcgi_script_name;
include fastcgi_params;
}
php5-fpm.conf
<value name="listen_address">/tmp/fcgi.sock</value>
<value name="max_children">1500</value>
<value name="max_requests">5000</value>
what all. with apache bench (ab -n 1000 -c 1000 http: // url ... ) I can request a static file (size 10 KB) in 250 ms for 1000 simultaneous connections.
Document Path: /inc/helper-swf.js
Document Length: 10217 bytes
Concurrency Level: 1000
Time taken for tests: 0.278 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 10448124 bytes
HTML transferred: 10219896 bytes
Requests per second: 3600.30 [#/sec] (mean)
Time per request: 277.755 [ms] (mean)
Time per request: 0.278 [ms] (mean, across all concurrent requests)
Transfer rate: 36734.70 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 27 11.1 30 41
Processing: 16 101 57.1 102 215
Waiting: 15 101 57.1 101 215
Total: 28 128 56.5 136 235
Percentage of the requests served within a certain time (ms)
50% 136
66% 167
75% 178
80% 184
90% 198
95% 205
98% 220
99% 228
100% 235 (longest request)
But when the request is sent to the php file, it took 500 ms ??? Php does nothing, the first line in the file is die ();
Document Path: /test.php
Document Length: 0 bytes
Concurrency Level: 1000
Time taken for tests: 0.501 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 158000 bytes
HTML transferred: 0 bytes
Requests per second: 1996.99 [#/sec] (mean)
Time per request: 500.754 [ms] (mean)
Time per request: 0.501 [ms] (mean, across all concurrent requests)
Transfer rate: 308.13 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 28 9.5 29 41
Processing: 15 365 117.4 395 448
Waiting: 15 363 117.1 393 448
Total: 27 393 122.9 425 480
Percentage of the requests served within a certain time (ms)
50% 425
66% 434
75% 471
80% 472
90% 473
95% 474
98% 479
99% 479
100% 480 (longest request)
There is no content to transfer when accessing the php file, there is only an upstream stream from nginx to php5-fpm via the socket (tcp takes 800 ms with 1000 simultaneous connections). What is the problem? There are no clues in the magazines. The limit of the open file is 32768. Is there a way to adjust the response time with php-fpm?