systemsim % mysim spu 7 display statistics
SPU DD3.0
***
Total Cycle count 182385313
Total Instruction count 643
Total CPI 283647.45
***
Performance Cycle count 182385313
Performance Instruction count 102226631 (94395215)
Performance CPI 1.78 (1.93)
Branch instructions 5154943
Branch taken 3604735
Branch not taken 1550208
Hint instructions 1693161
Hint hit 2376968
Contention at LS between Load/Store and Prefetch 1726405
Single cycle 65158757 ( 35.7%)
Dual cycle 14618229 ( 8.0%)
Nop cycle 3011239 ( 1.7%)
Stall due to branch miss 26092239 ( 14.3%)
Stall due to prefetch miss 9552 ( 0.0%)
Stall due to dependency 59604783 ( 32.7%)
Stall due to fp resource conflict 59724 ( 0.0%)
Stall due to waiting for hint target 2379845 ( 1.3%)
Stall due to dp pipeline 2651778 ( 1.5%)
Channel stall cycle 8799158 ( 4.8%)
SPU Initialization cycle 9 ( 0.0%)
-----------------------------------------------------------------------
Total cycle 182385313 (100.0%)
Stall cycles due to dependency on each pipelines
FX2 4604796 ( 7.7% of all dependency stalls)
SHUF 17092054 ( 28.7% of all dependency stalls)
FX3 1765845 ( 3.0% of all dependency stalls)
LS 16959609 ( 28.5% of all dependency stalls)
BR 233909 ( 0.4% of all dependency stalls)
SPR 94 ( 0.0% of all dependency stalls)
LNOP 0 ( 0.0% of all dependency stalls)
NOP 0 ( 0.0% of all dependency stalls)
FXB 0 ( 0.0% of all dependency stalls)
FP6 14724483 ( 24.7% of all dependency stalls)
FP7 3258609 ( 5.5% of all dependency stalls)
FPD 965384 ( 1.6% of all dependency stalls)
The number of used registers are 128, the used ratio is 100.00
dumped pipeline stats
systemsim %
