Randomly unpredictable rate limiting using the iRule iRules.virtual_server_connection_rate_limit_with_tables.ashx

Some results from apachebench testing...

20 requests in .23 seconds, all succeeded.

Concurrency Level:      1
Time taken for tests:   0.238 seconds
Complete requests:      20
Failed requests:        0
Write errors:           0
Total transferred:      9320 bytes
HTML transferred:       1860 bytes
Requests per second:    83.98 [/sec] (mean)
Time per request:       11.908 [ms] (mean)
Time per request:       11.908 [ms] (mean, across all concurrent requests)
Transfer rate:          38.22 [Kbytes/sec] received

40 requests in .36 seconds, 20 succeeded.

Concurrency Level:      1
Time taken for tests:   0.366 seconds
Complete requests:      40
Failed requests:        20
   (Connect: 0, Receive: 0, Length: 20, Exceptions: 0)
Write errors:           0
Total transferred:      9320 bytes
HTML transferred:       1860 bytes
Requests per second:    109.26 [/sec] (mean)
Time per request:       9.152 [ms] (mean)
Time per request:       9.152 [ms] (mean, across all concurrent requests)
Transfer rate:          24.86 [Kbytes/sec] received

40 requests (10 threads) in .08 seconds, 20 succeeded

Concurrency Level:      10
Time taken for tests:   0.084 seconds
Complete requests:      40
Failed requests:        20
   (Connect: 0, Receive: 0, Length: 20, Exceptions: 0)
Write errors:           0
Total transferred:      9320 bytes
HTML transferred:       1860 bytes
Requests per second:    477.45 [/sec] (mean)
Time per request:       20.945 [ms] (mean)
Time per request:       2.094 [ms] (mean, across all concurrent requests)
Transfer rate:          108.64 [Kbytes/sec] received