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: 99.03
APERF: 144.62
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 loop_count=10 and unroll_count=1
Code:
0: 41 0f 01 3e invlpg BYTE PTR [r14]
Show nanoBench command
Results:
MPERF: 100.07
APERF: 146.9
UOPS: 29.0
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: 98.04
APERF: 143.5
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 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: 99.43
APERF: 146.6
UOPS: 29.0
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