Load Testing With Siege

vagrant@squeeze:~$ siege -c50 -d10 -t3M http://www.github.com
** SIEGE 2.70
** Preparing 50 concurrent users for battle.
The server is now under siege...

Lifting the server siege...      done.
Transactions:               1569 hits
Availability:             100.00 %
Elapsed time:             179.86 secs
Data transferred:           2.31 MB
Response time:              0.55 secs
Transaction rate:           8.72 trans/sec
Throughput:             0.01 MB/sec
Concurrency:                4.79
Successful transactions:        1618
Failed transactions:               0
Longest transaction:            2.65
Shortest transaction:           0.27