FreeBSD make kernel in IBM X3550

dmesg:

CPU: Intel(R) Xeon(R) CPU           E5335  @ 2.00GHz (1995.01-MHz K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x6fb  Stepping = 11
  Features=0xbfebfbff
  Features2=0x4e33d
  AMD Features=0x20100800
  AMD Features2=0x1
  Cores per package: 4
usable memory = 2134093824 (2035 MB)
avail memory  = 2059395072 (1963 MB)
ACPI APIC Table: 
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
 cpu4 (AP): APIC ID:  4
 cpu5 (AP): APIC ID:  5
 cpu6 (AP): APIC ID:  6
 cpu7 (AP): APIC ID:  7

time make -j16 buildworld KERNCONF=MONS

>>> World build completed on Fri Jan  4 02:37:11 CST 2008
--------------------------------------------------------------
4576.008u 22291.090s 1:14:39.80 599.7%  5049+1106k 14082+8301io 3958pf+0w