[data from a 1.0 GHz MPC7455]

PERFCTR INIT: PVR 0x80010201, CPU clock 1002480 kHz, TB clock 16708 kHz
PERFCTR INIT: NITER == 256
PERFCTR INIT: loop overhead is 70 cycles
PERFCTR INIT: mftbl cost is 6.9 cycles (1837 total)
PERFCTR INIT: mfspr (pmc1) cost is 3.9 cycles (1080 total)
PERFCTR INIT: mfspr (pmc2) cost is 3.9 cycles (1085 total)
PERFCTR INIT: mfspr (pmc3) cost is 3.9 cycles (1071 total)
PERFCTR INIT: mfspr (pmc4) cost is 3.8 cycles (1064 total)
PERFCTR INIT: mfspr (mmcr0) cost is 3.9 cycles (1069 total)
PERFCTR INIT: mfspr (mmcr1) cost is 3.8 cycles (1064 total)
PERFCTR INIT: mtspr (pmc2) cost is 4.0 cycles (1111 total)
PERFCTR INIT: mtspr (pmc3) cost is 3.8 cycles (1064 total)
PERFCTR INIT: mtspr (pmc4) cost is 3.9 cycles (1069 total)
PERFCTR INIT: mtspr (mmcr1) cost is 3.8 cycles (1064 total)
PERFCTR INIT: mtspr (mmcr0) cost is 3.9 cycles (1069 total)
PERFCTR INIT: check_fcece(0): MMCR0[FC] is 0, PMC1 is 0x8000008a
PERFCTR INIT: check_fcece(1): MMCR0[FC] is 1, PMC1 is 0x80000000
PERFCTR INIT: check_trigger(0): MMCR0[TRIGGER] is 0, PMC1 is 0x80000088, PMC2 is 0x8c
PERFCTR INIT: check_trigger(1): MMCR0[TRIGGER] is 0, PMC1 is 0x8000007d, PMC2 is 0x81
perfctr: driver 2.6.12, cpu type PowerPC 60x/7xx/74xx at 1002480 kHz