xihuang@Z620-NAV:/tmp/u-boot$ ab -n 2000 -c 1000 http://localhost:80/index.html
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)
Completed 200 requests
Completed 400 requests
Completed 600 requests
Completed 800 requests
Completed 1000 requests
Completed 1200 requests
Completed 1400 requests
Completed 1600 requests
Completed 1800 requests
Completed 2000 requests
Finished 2000 requests


Server Software:        lighttpd/1.4.28
Server Hostname:        localhost
Server Port:            80

Document Path:          /index.html
Document Length:        177 bytes

Concurrency Level:      1000
Time taken for tests:   0.221 seconds
Complete requests:      2000
Failed requests:        0
Write errors:           0
Total transferred:      868000 bytes
HTML transferred:       354000 bytes
Requests per second:    9037.75 [#/sec] (mean)
Time per request:       110.647 [ms] (mean)
Time per request:       0.111 [ms] (mean, across all concurrent requests)
Transfer rate:          3830.45 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        2    6   3.8      5      16
Processing:     3    7   6.5      7     201
Waiting:        2    6   6.6      6     201
Total:          7   13   8.0     11     212

Percentage of the requests served within a certain time (ms)
  50%     11
  66%     11
  75%     11
  80%     20
  90%     21
  95%     24
  98%     25
  99%     25
 100%    212 (longest request)
xihuang@Z620-NAV:/tmp/u-boot$ ab -n 2000 -c 1000 http://localhost:8081/index.html
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)
Completed 200 requests
Completed 400 requests
Completed 600 requests
Completed 800 requests
Completed 1000 requests
Completed 1200 requests
Completed 1400 requests
Completed 1600 requests
Completed 1800 requests
apr_socket_recv: Connection reset by peer (104)
Total of 1935 requests completed