INVLPG (M8) - Throughput and Uops
With a non-indexed addressing mode
With 1 independent instruction
With unroll_count=500 and no inner loop
Code:
0: 41 0f 01 3e invlpg BYTE PTR [r14]
Show nanoBench command
Results:
MPERF: 94.2
APERF: 118.39
UOPS: 26.0
FpuPipeAssignment.Total0: 0.0
FpuPipeAssignment.Total1: 0.0
FpuPipeAssignment.Total2: 0.0
FpuPipeAssignment.Total3: 0.0
FpuPipeAssignment.Total4: 0.0
FpuPipeAssignment.Total5: 0.0
DIV_CYCLES: 0.0
With loop_count=10 and unroll_count=1
Code:
0: 41 0f 01 3e invlpg BYTE PTR [r14]
Show nanoBench command
Results:
MPERF: 94.97
APERF: 119.0
UOPS: 27.0
FpuPipeAssignment.Total0: 0.0
FpuPipeAssignment.Total1: 0.0
FpuPipeAssignment.Total2: 0.0
FpuPipeAssignment.Total3: 0.0
FpuPipeAssignment.Total4: 0.0
FpuPipeAssignment.Total5: 0.0
DIV_CYCLES: 0.0
With an indexed addressing mode
With 1 independent instruction
With unroll_count=500 and no inner loop
Code:
0: 43 0f 01 3c 2e invlpg BYTE PTR [r14+r13*1]
Init:
XOR R13, R13
Show nanoBench command
Results:
MPERF: 94.76
APERF: 118.45
UOPS: 26.0
FpuPipeAssignment.Total0: 0.0
FpuPipeAssignment.Total1: 0.0
FpuPipeAssignment.Total2: 0.0
FpuPipeAssignment.Total3: 0.0
FpuPipeAssignment.Total4: 0.0
FpuPipeAssignment.Total5: 0.0
DIV_CYCLES: 0.0
With loop_count=10 and unroll_count=1
Code:
0: 43 0f 01 3c 2e invlpg BYTE PTR [r14+r13*1]
Init:
XOR R13, R13
Show nanoBench command
Results:
MPERF: 96.2
APERF: 119.0
UOPS: 27.0
FpuPipeAssignment.Total0: 0.0
FpuPipeAssignment.Total1: 0.0
FpuPipeAssignment.Total2: 0.0
FpuPipeAssignment.Total3: 0.0
FpuPipeAssignment.Total4: 0.0
FpuPipeAssignment.Total5: 0.0
DIV_CYCLES: 0.0