Assume the following parameters for a shadow paging system. TLB Misses per1000 Instructions NPT TLB MissLatency Page Faults per1000 Instructions Shadowing PageFault Overhead 0.2 200 cycles 0.001 30,000 cycles For a benchmark with native execution CPI of 1, what are the CPI numbers if using shadow page tables vs. NPT (assuming only page table virtualization overhead)? What techniques can be used to reduce page table shadowing induced overhead? What techniques can be used to reduce NPT induced overhead?

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Assume the following parameters for a shadow paging system.

TLB Misses per
1000 Instructions
NPT TLB Miss
Latency
Page Faults per
1000 Instructions
Shadowing Page
Fault Overhead
0.2 200 cycles 0.001 30,000 cycles


For a benchmark with native execution CPI of 1, what are the CPI numbers if using shadow page tables vs. NPT (assuming only page table virtualization overhead)?
What techniques can be used to reduce page table shadowing induced overhead?
What techniques can be used to reduce NPT induced overhead?

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