Static file benchmarks

[kingler]

It appears that you are using the Amazon EC2 Small Instance (default):
Note that it says "I/O Performance: Moderate" in the description of
small instance.

Maybe you are hitting the bottleneck of the disk IO...

-Liang

On Fri, Apr 18, 2008 at 10:53 AM, Cocoa Guy <cocoa.guy at gmail.com> wrote:
> I've seen places online casually mention that nginx can server static
>  files at 13k requests/sec:
>  http://www.vbulletin.com/forum/showpost.php?s=bc85853b9f0f48462767c44081cf7057&p=1474904&postcount=1
>  http://brainspl.at/articles/2006/08/23/nginx-my-new-favorite-front-end-for-mongrel-cluster
>
>  One blog entry achieved 8K requests/sec and posted their test files
>  and nginx conf file:
>  http://superjared.com/entry/benching-lighttpd-vs-nginx-static-files/
>
>  When running nginx on Amazon's EC2 and using this same test file and
>  nginx conf, I'm only getting 4K requests/sec and am trying to
>  understand why.
>
>  In my tests both the nginx machine and the machine running Apache
>  Bench are on EC2 with a max speed of 20 MB/s between them. I'm using
>  the internal EC2 IP addresses.
>
>  The instances have 1.7 GB or RAM and the equivalent of a single 1-1.2
>  Ghz Xeon. The machines are running Fedora Core 4.
>
>  During the test the CPU load is a bit over 10% and used memory is
>  constant at 0.3 GB.
>
>  Any thoughts as to what is the bottleneck? Hardware? OS? Network?
>  nginx misconfiguration?
>
>  Cheers!
>
>  ab -c 1000 -n 100000 http://xxxxxx/
>  This is ApacheBench, Version 2.0.41-dev <$Revision: 1.141 $> apache-2.0
>  Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
>  Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
>
>  Benchmarking xxxxx (be patient)
>  Completed 10000 requests
>  Completed 20000 requests
>  Completed 30000 requests
>  Completed 40000 requests
>  Completed 50000 requests
>  Completed 60000 requests
>  Completed 70000 requests
>  Completed 80000 requests
>  Completed 90000 requests
>  Finished 100000 requests
>
>
>  Server Software:        nginx/0.5.35
>  Server Hostname:        xxxxx
>  Server Port:            80
>
>  Document Path:          /
>  Document Length:        356 bytes
>
>  Concurrency Level:      1000
>  Time taken for tests:   24.326633 seconds
>  Complete requests:      100000
>  Failed requests:        0
>  Write errors:           0
>  Total transferred:      56720399 bytes
>  HTML transferred:       35611748 bytes
>  Requests per second:    4110.72 [#/sec] (mean)
>  Time per request:       243.266 [ms] (mean)
>  Time per request:       0.243 [ms] (mean, across all concurrent requests)
>  Transfer rate:          2276.97 [Kbytes/sec] received
>
>  Connection Times (ms)
>               min  mean[+/-sd] median   max
>  Connect:        0  140 842.2      2   21073
>  Processing:     0   68 504.6      4   13673
>  Waiting:        0   66 503.5      2   13671
>  Total:          0  209 992.7      7   21078
>
>  Percentage of the requests served within a certain time (ms)
>   50%      7
>   66%      8
>   75%      9
>   80%     33
>   90%     75
>   95%    765
>   98%   3047
>   99%   3857
>   100%  21078 (longest request)
>
>  nginx conf:
>  worker_processes  1;
>  events {
>     worker_connections  1024;
>  }
>
>  http {
>     include       conf/mime.types;
>     default_type  application/octet-stream;
>
>     access_log  logs/access.log;
>
>     sendfile        on;
>     keepalive_timeout  65;
>
>     gzip  on;
>
>     server {
>         listen       80;
>         server_name  localhost;
>
>         location / {
>             root   /www/pages;
>             index  index.html;
>         }
>     }
>  }
>
>