Enable APC
% siege -H "Cookie: squirrelmail_language=; SQMSESSID=10c85281f476600ee102e2db24354612; key=0Ce3/xkJ" \
        -c 10 http://mail.ubuntu/src/right_main.php -b -r 1000
** SIEGE 2.66
** Preparing 10 concurrent users for battle.
The server is now under siege..      done.                                                                                                          Transactions:                   10000 hits
Availability:                 100.00 %
Elapsed time:                  85.32 secs
Data transferred:              13.72 MB
Response time:                  0.08 secs
Transaction rate:             117.21 trans/sec
Throughput:                     0.16 MB/sec
Concurrency:                    9.25
Successful transactions:       10000
Failed transactions:               0
Longest transaction:           11.02
Shortest transaction:           0.00