Scalability of static file retrieving:

#_of_conc.conn.			speedup
1						1
10						10.0
100						87.2

Raw output from Apache's ab tool is attached below.

================== 1 concurrent connections (static file) ================== 
$ ab -n 1000 -c 1 http://benchmarkgae.appspot.com/ab_sort

Document Path:          /ab_sort
Document Length:        3754 bytes

Concurrency Level:      1
Time taken for tests:   111.155138 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      3978000 bytes
HTML transferred:       3754000 bytes
Requests per second:    9.00 [#/sec] (mean)
Time per request:       111.155 [ms] (mean)
Time per request:       111.155 [ms] (mean, across all concurrent requests)
Transfer rate:          34.94 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       35   35   0.3     35      39
Processing:    62   75  13.4     68     143
Waiting:       61   69  10.1     65     140
Total:         97  110  13.4    103     178

Percentage of the requests served within a certain time (ms)
  50%    103
  66%    119
  75%    122
  80%    123
  90%    127
  95%    136
  98%    144
  99%    149
 100%    178 (longest request)

================== 10 concurrent connections (static file) ================== 
$ ab -n 1000 -c 10 http://benchmarkgae.appspot.com/ab_sort

Document Path:          /ab_sort
Document Length:        3754 bytes

Concurrency Level:      10
Time taken for tests:   11.93639 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      3980855 bytes
HTML transferred:       3756631 bytes
Requests per second:    90.14 [#/sec] (mean)
Time per request:       110.936 [ms] (mean)
Time per request:       11.094 [ms] (mean, across all concurrent requests)
Transfer rate:          350.38 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       35   35   0.3     35      37
Processing:    61   74  18.7     66     294
Waiting:       60   68  16.7     64     272
Total:         97  109  18.7    101     329

Percentage of the requests served within a certain time (ms)
  50%    101
  66%    112
  75%    120
  80%    121
  90%    128
  95%    138
  98%    153
  99%    178
 100%    329 (longest request)

================== 100 concurrent connections (static file) ================== 
$ ab -n 1000 -c 100 http://benchmarkgae.appspot.com/ab_sort

Document Path:          /ab_sort
Document Length:        3754 bytes

Concurrency Level:      100
Time taken for tests:   12.745755 seconds
Complete requests:      10000
Failed requests:        2593
   (Connect: 0, Length: 2593, Exceptions: 0)
Write errors:           0
Non-2xx responses:      2593
Total transferred:      32452182 bytes
HTML transferred:       30396285 bytes
Requests per second:    784.57 [#/sec] (mean)
Time per request:       127.458 [ms] (mean)
Time per request:       1.275 [ms] (mean, across all concurrent requests)
Transfer rate:          2486.40 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       35   35   1.1     35     123
Processing:    59   90  22.9     95     746
Waiting:       59   86  20.3     93     732
Total:         95  126  23.0    130     782

Percentage of the requests served within a certain time (ms)
  50%    130
  66%    133
  75%    137
  80%    141
  90%    147
  95%    151
  98%    158
  99%    170
 100%    782 (longest request)