BTS (M64, 0) - Throughput and Uops

With unroll_count=500 and no inner loop

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.55
  • APERF: 9.0
  • UOPS: 4.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.53
  • APERF: 9.0
  • UOPS: 4.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.53
  • APERF: 9.0
  • UOPS: 4.02
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=500 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.61
  • APERF: 9.0
  • UOPS: 5.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 5.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 5.02
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=200 and no inner loop

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.59
  • APERF: 9.0
  • UOPS: 16.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 17.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 16.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=200 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.59
  • APERF: 9.0
  • UOPS: 17.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.01
  • UOPS: 18.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.01
  • UOPS: 17.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=200 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 6.66
  • APERF: 8.0
  • UOPS: 20.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 6.75
  • APERF: 8.01
  • UOPS: 21.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 6.75
  • APERF: 8.01
  • UOPS: 20.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=100 and no inner loop

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.32
  • APERF: 16.0
  • UOPS: 32.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.01
  • UOPS: 34.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.49
  • APERF: 16.01
  • UOPS: 32.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.32
  • APERF: 16.0
  • UOPS: 33.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.49
  • APERF: 16.02
  • UOPS: 35.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.48
  • APERF: 16.02
  • UOPS: 33.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.32
  • APERF: 16.0
  • UOPS: 40.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.42
  • APERF: 16.02
  • UOPS: 42.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.02
  • UOPS: 40.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=100 and no inner loop

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    2f:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    35:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3b:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    41:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    47:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    4d:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    53:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    59:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 27.0
  • APERF: 32.0
  • UOPS: 64.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    2f:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    35:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3b:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    41:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    47:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    4d:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    53:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    59:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.01
  • UOPS: 66.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     5:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     b:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    11:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    17:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    1d:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    23:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    29:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    2f:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    35:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3b:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    41:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    47:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    4d:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    53:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    59:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.01
  • UOPS: 64.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    32:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    38:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3e:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    44:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    4a:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    50:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    56:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    5c:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 27.0
  • APERF: 32.0
  • UOPS: 65.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    32:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    38:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3e:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    44:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    4a:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    50:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    56:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    5c:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 67.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
     e:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    14:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    1a:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    20:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    26:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    2c:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    32:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    38:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    3e:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    44:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    4a:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    50:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    56:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    5c:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 65.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    47:	4d 85 ff             	test   r15,r15
    4a:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    50:	4d 85 ff             	test   r15,r15
    53:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    62:	4d 85 ff             	test   r15,r15
    65:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    6b:	4d 85 ff             	test   r15,r15
    6e:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    74:	4d 85 ff             	test   r15,r15
    77:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    7d:	4d 85 ff             	test   r15,r15
    80:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    86:	4d 85 ff             	test   r15,r15
    89:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 18.72
  • APERF: 32.0
  • UOPS: 80.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    47:	4d 85 ff             	test   r15,r15
    4a:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    50:	4d 85 ff             	test   r15,r15
    53:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    62:	4d 85 ff             	test   r15,r15
    65:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    6b:	4d 85 ff             	test   r15,r15
    6e:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    74:	4d 85 ff             	test   r15,r15
    77:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    7d:	4d 85 ff             	test   r15,r15
    80:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    86:	4d 85 ff             	test   r15,r15
    89:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 82.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	49 0f ba 2e 00       	bts    QWORD PTR [r14],0x0
     8:	4d 85 ff             	test   r15,r15
     b:	49 0f ba 6e 08 00    	bts    QWORD PTR [r14+0x8],0x0
    11:	4d 85 ff             	test   r15,r15
    14:	49 0f ba 6e 10 00    	bts    QWORD PTR [r14+0x10],0x0
    1a:	4d 85 ff             	test   r15,r15
    1d:	49 0f ba 6e 18 00    	bts    QWORD PTR [r14+0x18],0x0
    23:	4d 85 ff             	test   r15,r15
    26:	49 0f ba 6e 20 00    	bts    QWORD PTR [r14+0x20],0x0
    2c:	4d 85 ff             	test   r15,r15
    2f:	49 0f ba 6e 28 00    	bts    QWORD PTR [r14+0x28],0x0
    35:	4d 85 ff             	test   r15,r15
    38:	49 0f ba 6e 30 00    	bts    QWORD PTR [r14+0x30],0x0
    3e:	4d 85 ff             	test   r15,r15
    41:	49 0f ba 6e 38 00    	bts    QWORD PTR [r14+0x38],0x0
    47:	4d 85 ff             	test   r15,r15
    4a:	49 0f ba 6e 40 00    	bts    QWORD PTR [r14+0x40],0x0
    50:	4d 85 ff             	test   r15,r15
    53:	49 0f ba 6e 48 00    	bts    QWORD PTR [r14+0x48],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	49 0f ba 6e 50 00    	bts    QWORD PTR [r14+0x50],0x0
    62:	4d 85 ff             	test   r15,r15
    65:	49 0f ba 6e 58 00    	bts    QWORD PTR [r14+0x58],0x0
    6b:	4d 85 ff             	test   r15,r15
    6e:	49 0f ba 6e 60 00    	bts    QWORD PTR [r14+0x60],0x0
    74:	4d 85 ff             	test   r15,r15
    77:	49 0f ba 6e 68 00    	bts    QWORD PTR [r14+0x68],0x0
    7d:	4d 85 ff             	test   r15,r15
    80:	49 0f ba 6e 70 00    	bts    QWORD PTR [r14+0x70],0x0
    86:	4d 85 ff             	test   r15,r15
    89:	49 0f ba 6e 78 00    	bts    QWORD PTR [r14+0x78],0x0
  

• Show nanoBench command
• Results:
  • MPERF: 28.14
  • APERF: 32.02
  • UOPS: 80.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=500 and no inner loop

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.55
  • APERF: 9.0
  • UOPS: 4.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 4.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 4.02
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=500 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.55
  • APERF: 9.0
  • UOPS: 5.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 5.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 5.02
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=200 and no inner loop

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.59
  • APERF: 9.0
  • UOPS: 16.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 17.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.0
  • UOPS: 16.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=200 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.62
  • APERF: 9.0
  • UOPS: 17.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.01
  • UOPS: 18.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 7.58
  • APERF: 9.01
  • UOPS: 17.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=200 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 6.69
  • APERF: 8.0
  • UOPS: 20.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 6.75
  • APERF: 8.01
  • UOPS: 21.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 6.75
  • APERF: 8.01
  • UOPS: 20.1
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=100 and no inner loop

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.44
  • APERF: 16.0
  • UOPS: 32.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.01
  • UOPS: 34.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.49
  • APERF: 16.02
  • UOPS: 32.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.56
  • APERF: 16.0
  • UOPS: 33.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.02
  • UOPS: 35.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.02
  • UOPS: 33.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.44
  • APERF: 16.0
  • UOPS: 40.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.49
  • APERF: 16.02
  • UOPS: 42.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 13.5
  • APERF: 16.02
  • UOPS: 40.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With unroll_count=100 and no inner loop

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    37:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    3e:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    45:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4c:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    53:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5a:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    61:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    68:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 27.0
  • APERF: 32.0
  • UOPS: 64.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    37:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    3e:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    45:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4c:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    53:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5a:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    61:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    68:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.01
  • UOPS: 66.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     6:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
     d:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    14:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1b:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    22:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    29:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    30:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    37:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    3e:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    45:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4c:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    53:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5a:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    61:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    68:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 64.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    3a:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    41:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    48:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4f:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    56:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5d:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    64:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    6b:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.76
  • APERF: 32.0
  • UOPS: 65.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    3a:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    41:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    48:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4f:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    56:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5d:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    64:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    6b:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 67.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    10:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    17:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    1e:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    25:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    2c:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    33:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    3a:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    41:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    48:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    4f:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    56:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    5d:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    64:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    6b:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 65.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With additional dependency-breaking instructions (before each instruction)

With unroll_count=100 and no inner loop

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    4f:	4d 85 ff             	test   r15,r15
    52:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    63:	4d 85 ff             	test   r15,r15
    66:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    6d:	4d 85 ff             	test   r15,r15
    70:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    77:	4d 85 ff             	test   r15,r15
    7a:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    81:	4d 85 ff             	test   r15,r15
    84:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    8b:	4d 85 ff             	test   r15,r15
    8e:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    95:	4d 85 ff             	test   r15,r15
    98:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 27.0
  • APERF: 32.0
  • UOPS: 80.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    4f:	4d 85 ff             	test   r15,r15
    52:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    63:	4d 85 ff             	test   r15,r15
    66:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    6d:	4d 85 ff             	test   r15,r15
    70:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    77:	4d 85 ff             	test   r15,r15
    7a:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    81:	4d 85 ff             	test   r15,r15
    84:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    8b:	4d 85 ff             	test   r15,r15
    8e:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    95:	4d 85 ff             	test   r15,r15
    98:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 82.0
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	4d 85 ff             	test   r15,r15
     3:	4b 0f ba 2c 2e 00    	bts    QWORD PTR [r14+r13*1],0x0
     9:	4d 85 ff             	test   r15,r15
     c:	4b 0f ba 6c 2e 08 00 	bts    QWORD PTR [r14+r13*1+0x8],0x0
    13:	4d 85 ff             	test   r15,r15
    16:	4b 0f ba 6c 2e 10 00 	bts    QWORD PTR [r14+r13*1+0x10],0x0
    1d:	4d 85 ff             	test   r15,r15
    20:	4b 0f ba 6c 2e 18 00 	bts    QWORD PTR [r14+r13*1+0x18],0x0
    27:	4d 85 ff             	test   r15,r15
    2a:	4b 0f ba 6c 2e 20 00 	bts    QWORD PTR [r14+r13*1+0x20],0x0
    31:	4d 85 ff             	test   r15,r15
    34:	4b 0f ba 6c 2e 28 00 	bts    QWORD PTR [r14+r13*1+0x28],0x0
    3b:	4d 85 ff             	test   r15,r15
    3e:	4b 0f ba 6c 2e 30 00 	bts    QWORD PTR [r14+r13*1+0x30],0x0
    45:	4d 85 ff             	test   r15,r15
    48:	4b 0f ba 6c 2e 38 00 	bts    QWORD PTR [r14+r13*1+0x38],0x0
    4f:	4d 85 ff             	test   r15,r15
    52:	4b 0f ba 6c 2e 40 00 	bts    QWORD PTR [r14+r13*1+0x40],0x0
    59:	4d 85 ff             	test   r15,r15
    5c:	4b 0f ba 6c 2e 48 00 	bts    QWORD PTR [r14+r13*1+0x48],0x0
    63:	4d 85 ff             	test   r15,r15
    66:	4b 0f ba 6c 2e 50 00 	bts    QWORD PTR [r14+r13*1+0x50],0x0
    6d:	4d 85 ff             	test   r15,r15
    70:	4b 0f ba 6c 2e 58 00 	bts    QWORD PTR [r14+r13*1+0x58],0x0
    77:	4d 85 ff             	test   r15,r15
    7a:	4b 0f ba 6c 2e 60 00 	bts    QWORD PTR [r14+r13*1+0x60],0x0
    81:	4d 85 ff             	test   r15,r15
    84:	4b 0f ba 6c 2e 68 00 	bts    QWORD PTR [r14+r13*1+0x68],0x0
    8b:	4d 85 ff             	test   r15,r15
    8e:	4b 0f ba 6c 2e 70 00 	bts    QWORD PTR [r14+r13*1+0x70],0x0
    95:	4d 85 ff             	test   r15,r15
    98:	4b 0f ba 6c 2e 78 00 	bts    QWORD PTR [r14+r13*1+0x78],0x0
  

• Init:

  XOR R13, R13

• Show nanoBench command
• Results:
  • MPERF: 26.96
  • APERF: 32.02
  • UOPS: 80.2
  • FpuPipeAssignment.Total0: 0.0
  • FpuPipeAssignment.Total1: 0.0
  • FpuPipeAssignment.Total2: 0.0
  • FpuPipeAssignment.Total3: 0.0
  • DIV_CYCLES: 0.0