使用Apache ab进行http性能测试

　　This is ApacheBench, Version 2.3 <$Revision: 1663405 $>

　　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 100 requests

　　Completed 200 requests

　　Completed 300 requests

　　Completed 400 requests

　　Completed 500 requests

　　Completed 600 requests

　　Completed 700 requests

　　Completed 800 requests

　　Completed 900 requests

　　Completed 1000 requests

　　Finished 1000 requests

　　Server Software:

　　Server Hostname: localhost

　　Server Port: 3000

　　Document Path: /

　　Document Length: 14 bytes

　　Concurrency Level: 10

　　Time taken for tests: 0.323 seconds

　　Complete requests: 1000

　　Failed requests: 0

　　Total transferred: 115000 bytes

　　HTML transferred: 14000 bytes

　　Requests per second: 3097.37 [#/sec] (mean)

　　Time per request: 3.229 [ms] (mean)

　　Time per request: 0.323 [ms] (mean, across all concurrent requests)

　　Transfer rate: 347.85 [Kbytes/sec] received

　　Connection Times (ms)

　　min mean[+/-sd] median max

　　Connect: 0 0 0.1 0 1

　　Processing: 1 3 2.2 2 16

　　Waiting: 1 3 2.2 2 16

　　Total: 1 3 2.2 2 16

　　Percentage of the requests served within a certain time (ms)

　　50% 2

　　66% 3

　　75% 3

　　80% 4

　　90% 5

　　95% 7

　　98% 13

　　99% 15

　　100% 16 (longest request)