????????
??????????д???????????????????????jae??????????????????????????jae???????÷?????????м????????????????????504???????????????????????jae??????????????????飬???????????????????????????????????????к?????????????????????????????bug?????????????????д??????????д??????????????????????????????????PAAS????????????JAE???web????????????????????????????????????
??????????
??????????????web??????????????????????????
??????1?????????????????????????????web????PAAS????????????;
??????2??PAAS??????????????????????????????????PAAS???????÷?????????????????;
??????3??web?????????????????????????д???????????????????????????????web??ò????????????????????
????????????????????web???????·???????????PAAS????web?????????????????磬?????PAAS???????????????????????web?????????????????????κ????????????????web??÷??????????????????????????ж????????????????????????????????????λ?????????
??????λ???????
???????????????????????????????????????????????λ????????????????磬??????????????????·???????????
??????1????????????????????????????????????????????????????????????????????;
??????2????????PAAS??????????????PAAS???????????????????JAE??????????????????????????????????BAE?????????????????SAE????????????????????????Щ?????????????????????????????????У??????Щ???????????????????Щ?????????????????????????????????????Щ??????????????????????????????????????????????????????????????????????????????繃????????????;
??????????????????????????????????????????????PAAS??????????????????????????????????????????????????????????????????????????????????ε??????????????????????????????????????????????????PAAS????????????????
???????????????web?????????????????????????????????????????????????????????????????
????????????????????????????????????????????????????γ????????????????????д?????????λ????????????????ò???????????????web??????????????????????????????web??????????ab???????apache????????????ubuntu?????????????????????????????????????????ab???????а????ubuntu?????????????
????The program 'ab' is currently not installed.  You can install it by typing:
????sudo apt-get install apache2-utils
??????????????????????????????????????ab??????????????????web??y????????????????????????￡?
????ab -n1000 -c10 http://localhost/
?????????????????????????1000?????????10???????????????·???????web?????????·??????????￡?
This is ApacheBench?? Version 2.3 <$Revision: 1430300 $>
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:        Apache/2.4.6
Server Hostname:        localhost
Server Port:            80
Document Path:          /
Document Length:        177 bytes
Concurrency Level:      10
Time taken for tests:   0.075 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      446000 bytes
HTML transferred:       177000 bytes
Requests per second:    13283.74 [#/sec] (mean)
Time per request:       0.753 [ms] (mean)
Time per request:       0.075 [ms] (mean?? across all concurrent requests)
Transfer rate:          5785.69 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:        0    0   0.1      0       1
Processing:     0    1   0.2      0       2
Waiting:        0    0   0.2      0       2
Total:          0    1   0.1      1       2
ERROR: The median and mean for the processing time are more than twice the standard
deviation apart. These results are NOT reliable.
Percentage of the requests served within a certain time (ms)
50%      1
66%      1
75%      1
80%      1
90%      1
95%      1
98%      1
99%      1
      2 (longest request)