#with bind_param
$ ab -n100 -c10 'http://127.0.0.1/run/checkmail?mailbox=test' | grep Request
Requests per second:    1.23 [#/sec] (mean)

#removed bind_param
$ ab -n100 -c10 'http://127.0.0.1/run/checkmail?mailbox=test' | grep Request
Requests per second:    77.77 [#/sec] (mean)