Stress-Testing of SVN

Good afternoon!
I have a task to stress test our SVN server, but unfortunately I'd know how
to emulate some definite number of users and how to monitor server load
during the work of these users.
Please, can you recommend me how can I stress test SVN server, to what
metrics should I pay attention (what is the bottleneck of SVN: memory, CPU,
hdd?) and with what tools I can monitor ubuntu server/svn server ?

I will be very grateful! Please help me!

-- 
С уважением,
Сергей Александров.
ICQ: 408123603
Моб.: +380684524288
-- 
С уважением,
Сергей Александров.
ICQ: 408123603
Моб.: +380684524288