[data from a 700 MHz Pentium III Xeon (Cascades) (quad Dell PE 6400)]

PERFCTR INIT: vendor 0, family 6, model 10, stepping 4, clock 699579 kHz
PERFCTR INIT: NITER == 64
PERFCTR INIT: loop overhead is 101 cycles
PERFCTR INIT: rdtsc cost is 30.8 cycles (2075 total)
PERFCTR INIT: rdpmc cost is 33.0 cycles (2213 total)
PERFCTR INIT: rdmsr (counter) cost is 91.2 cycles (5939 total)
PERFCTR INIT: rdmsr (evntsel) cost is 72.7 cycles (4754 total)
PERFCTR INIT: wrmsr (counter) cost is 80.5 cycles (5257 total)
PERFCTR INIT: wrmsr (evntsel) cost is 75.9 cycles (4962 total)
PERFCTR INIT: read cr4 cost is 1.7 cycles (212 total)
PERFCTR INIT: write cr4 cost is 42.0 cycles (2792 total)
PERFCTR INIT: write LVTPC cost is 40.4 cycles (2690 total)
