Some sieging:
# siege -b -c50 -uhttp://192.168.1.10:10000/
** Siege 2.59
** Preparing 50 concurrent users for battle.
The server is now under siege...
Lifting the server siege... done.
Transactions: 25976 hits
Availability: 100.00 %
Elapsed time: 28.37 secs
Data transferred: 138789768 bytes
Response time: 0.05 secs
Transaction rate: 915.62 trans/sec
Throughput: 4892131.26 bytes/sec
Concurrency: 48.82
Successful transactions: 25976
Failed transactions: 0
.. it's well capable of running large sites as well. With keep-alive it's near 2000transactions/sec. (which is 80-90% of IIS performance
quite good for hobbyist)