Thanks your reply.
But your link is xeon5000 and I can't find associativity of l2 cache and l1 cache about xeon5500.
I wander specification xeon5500 series, especially cache.
If you know, please let me know.^^
According to Anandtech, Tomshardware it's:
L1 = 4
L2 ~ 10
CPU-Z on my system say's
L1-D = 8
L1-I = 4
L2 = 8
L3 = 16