EC2の"us-east-1"と"us-west-1"をab(apache)で比較

スズキです。

一回、計測しておきたかったので... やっちゃいました。

対象は、EC2のus-east-1、us-east-1、そして、日本のサーバです。
計測したコンテンツは、Apacheをインストールした直後のデフォルトページで、
以下のコマンド(apacheのab)を利用しています。
$ ab -n 100 -c 10 http://xxx.xxx.xxx/

比較ポイントは下記のような感じでしょうか?

us-east-1 / us-west-1 / japan
--------
Requests per second [#/sec]:   14.73 /    22.76  /   91.19
Time per request [ms]      : 678.723 /  439.380  / 109.662
Transfer rate [Kbytes/sec] :   75.39 /   122.41  /  466.81

んー... 割合みて、

- "us-west-1"は"us-east-1"より1.6倍速い
- "japan"は"us-east-1"より6.2倍速い
- "japan"は"us-west-1"より4.0倍速い

って言っちゃっていいんでしょうか...

まあ、解釈はおいておいて...
以下に実際の、それぞれの出力結果をのせておきます。

▼ us-east-1
$ ab -n 100 -c 10 http://ec2-67-202-23-37.compute-1.amazonaws.com/
--------
Server Software:        Apache/2.2.3
Server Hostname:        ec2-67-202-23-37.compute-1.amazonaws.com
Server Port:            80
Document Path:          /
Document Length:        5043 bytes
Concurrency Level:      10
Time taken for tests:   6.787 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Non-2xx responses:      100
Total transferred:      524000 bytes
HTML transferred:       504300 bytes
Requests per second:    14.73 [#/sec] (mean)
Time per request:       678.723 [ms] (mean)
Time per request:       67.872 [ms] (mean, across all concurrent requests)
Transfer rate:          75.39 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:      206  212   3.2    212     223
Processing:   417  440  61.6    430     846
Waiting:      208  225  61.2    214     628
Total:        622  652  62.0    643    1059
Percentage of the requests served within a certain time (ms)
50%    643
66%    645
75%    647
80%    648
90%    656
95%    662
98%   1054
99%   1059
100%   1059 (longest request)
▼ us-west-1
$ ab -n 100 -c 10 http://ec2-204-236-167-225.us-west-1.compute.amazonaws.com/
--------
Server Software:        Apache/2.2.3
Server Hostname:        ec2-204-236-167-225.us-west-1.compute.amazonaws.com
Server Port:            80
Document Path:          /
Document Length:        5043 bytes
Concurrency Level:      10
Time taken for tests:   4.394 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Non-2xx responses:      107
Total transferred:      550754 bytes
HTML transferred:       529675 bytes
Requests per second:    22.76 [#/sec] (mean)
Time per request:       439.380 [ms] (mean)
Time per request:       43.938 [ms] (mean, across all concurrent requests)
Transfer rate:          122.41 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:      129  134   3.8    134     157
Processing:   264  280  40.8    273     551
Waiting:      132  143  39.8    136     407
Total:        394  414  41.4    407     689
Percentage of the requests served within a certain time (ms)
50%    407
66%    410
75%    414
80%    415
90%    418
95%    430
98%    676
99%    689
100%    689 (longest request)
▼ japan
$ ab -n 100 -c 10 http://xxx.xxx.xxx/
Server Software:        Apache/2.0.63
Server Hostname:        xxx.xxx.xxx
Server Port:            80
Document Path:          /
Document Length:        5044 bytes
Concurrency Level:      10
Time taken for tests:   1.097 seconds
Complete requests:      100
Failed requests:        0
Write errors:           0
Non-2xx responses:      100
Total transferred:      524200 bytes
HTML transferred:       504400 bytes
Requests per second:    91.19 [#/sec] (mean)
Time per request:       109.662 [ms] (mean)
Time per request:       10.966 [ms] (mean, across all concurrent requests)
Transfer rate:          466.81 [Kbytes/sec] received
Connection Times (ms)
min  mean[+/-sd] median   max
Connect:       16   33  18.1     23      72
Processing:    43   74  30.3     61     139
Waiting:       18   38  16.6     30      73
Total:         61  107  46.8     82     201
Percentage of the requests served within a certain time (ms)
50%     82
66%    118
75%    138
80%    180
90%    189
95%    193
98%    196
99%    201
100%    201 (longest request)

こういう内容、もっと増やしたいなー...

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