CMOVB (R32, R32) - Throughput and Uops

With unroll_count=500 and no inner loop

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 1.0
  • Reference cycles: 0.7
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 1.0
  • UOPS_MITE: 1.01
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 1 NOP

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 1.0
  • Reference cycles: 0.74
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 2.0
  • UOPS_MITE: 2.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 2 NOPs

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
     5:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 3.0
  • Core cycles: 1.0
  • Reference cycles: 0.8
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 3.0
  • UOPS_MITE: 3.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.99

With unroll_count=500, no inner loop, and 3 NOPs

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.0
  • Core cycles: 1.0
  • Reference cycles: 0.8
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 4.0
  • UOPS_MITE: 4.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.49
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 4 NOPs

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 5.0
  • Core cycles: 1.0
  • Reference cycles: 0.77
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 5.0
  • UOPS_MITE: 5.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 5 NOPs

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
     8:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 6.0
  • Core cycles: 1.16
  • Reference cycles: 0.93
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 6.0
  • UOPS_MITE: 6.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.48
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.52
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.16

With unroll_count=500, no inner loop, and 6 NOPs

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
     8:	90                   	nop
     9:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 7.0
  • Core cycles: 2.0
  • Reference cycles: 1.57
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 7.0
  • UOPS_MITE: 6.97
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.4
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.6
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 2.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.2
  • Core cycles: 1.0
  • Reference cycles: 0.75
  • UOPS_EXECUTED.THREAD: 1.1
  • RETIRE_SLOTS: 1.1
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.6
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.02
  • Core cycles: 1.0
  • Reference cycles: 0.75
  • UOPS_EXECUTED.THREAD: 1.01
  • RETIRE_SLOTS: 1.01
  • UOPS_MITE: 0.01
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.01

With unroll_count=200 and no inner loop

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.0
  • Core cycles: 4.0
  • Reference cycles: 3.12
  • UOPS_EXECUTED.THREAD: 4.0
  • RETIRE_SLOTS: 4.0
  • UOPS_MITE: 4.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 2.0
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.0
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 4.0

With loop_count=1000 and unroll_count=2

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 5.0
  • Core cycles: 2.32
  • Reference cycles: 1.74
  • UOPS_EXECUTED.THREAD: 4.51
  • RETIRE_SLOTS: 4.5
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.01
  • UOPS_PORT_0: 2.22
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.29
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.1
  • Core cycles: 2.05
  • Reference cycles: 1.54
  • UOPS_EXECUTED.THREAD: 4.06
  • RETIRE_SLOTS: 4.05
  • UOPS_MITE: 0.02
  • UOPS_MS: 0.02
  • UOPS_PORT_0: 2.02
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.03
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.03

With unroll_count=100 and no inner loop

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 8.0
  • Core cycles: 8.0
  • Reference cycles: 6.08
  • UOPS_EXECUTED.THREAD: 8.0
  • RETIRE_SLOTS: 8.0
  • UOPS_MITE: 8.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 4.0
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.0
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 8.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 10.0
  • Core cycles: 4.54
  • Reference cycles: 3.41
  • UOPS_EXECUTED.THREAD: 9.01
  • RETIRE_SLOTS: 9.01
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.03
  • UOPS_PORT_0: 4.51
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 8.2
  • Core cycles: 4.05
  • Reference cycles: 3.07
  • UOPS_EXECUTED.THREAD: 8.11
  • RETIRE_SLOTS: 8.1
  • UOPS_MITE: 0.05
  • UOPS_MS: 0.04
  • UOPS_PORT_0: 4.05
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.05
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.07

With unroll_count=100 and no inner loop

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
    20:	41 0f 42 d1          	cmovb  edx,r9d
    24:	41 0f 42 c1          	cmovb  eax,r9d
    28:	41 0f 42 f9          	cmovb  edi,r9d
    2c:	41 0f 42 f1          	cmovb  esi,r9d
    30:	41 0f 42 e9          	cmovb  ebp,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 13.0
  • Core cycles: 12.77
  • Reference cycles: 9.6
  • UOPS_EXECUTED.THREAD: 13.0
  • RETIRE_SLOTS: 13.0
  • UOPS_MITE: 13.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 6.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 6.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 13.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
    20:	41 0f 42 d1          	cmovb  edx,r9d
    24:	41 0f 42 c1          	cmovb  eax,r9d
    28:	41 0f 42 f9          	cmovb  edi,r9d
    2c:	41 0f 42 f1          	cmovb  esi,r9d
    30:	41 0f 42 e9          	cmovb  ebp,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 15.0
  • Core cycles: 7.02
  • Reference cycles: 5.28
  • UOPS_EXECUTED.THREAD: 14.01
  • RETIRE_SLOTS: 14.0
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.03
  • UOPS_PORT_0: 7.01
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 7.01
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	45 0f 42 c1          	cmovb  r8d,r9d
     4:	45 0f 42 d1          	cmovb  r10d,r9d
     8:	45 0f 42 d9          	cmovb  r11d,r9d
     c:	45 0f 42 e1          	cmovb  r12d,r9d
    10:	45 0f 42 e9          	cmovb  r13d,r9d
    14:	45 0f 42 f1          	cmovb  r14d,r9d
    18:	41 0f 42 d9          	cmovb  ebx,r9d
    1c:	41 0f 42 c9          	cmovb  ecx,r9d
    20:	41 0f 42 d1          	cmovb  edx,r9d
    24:	41 0f 42 c1          	cmovb  eax,r9d
    28:	41 0f 42 f9          	cmovb  edi,r9d
    2c:	41 0f 42 f1          	cmovb  esi,r9d
    30:	41 0f 42 e9          	cmovb  ebp,r9d
  

• Show nanoBench command
• Results:
  • Instructions retired: 13.2
  • Core cycles: 6.58
  • Reference cycles: 4.94
  • UOPS_EXECUTED.THREAD: 13.11
  • RETIRE_SLOTS: 13.1
  • UOPS_MITE: 0.12
  • UOPS_MS: 0.04
  • UOPS_PORT_0: 6.56
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 6.56
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.12

With unroll_count=500 and no inner loop

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.0
  • Core cycles: 1.0
  • Reference cycles: 0.7
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 1.0
  • UOPS_MITE: 1.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.01

With unroll_count=500, no inner loop, and 1 NOP

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 2.0
  • Core cycles: 1.0
  • Reference cycles: 0.77
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 2.0
  • UOPS_MITE: 2.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 2 NOPs

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
     5:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 3.0
  • Core cycles: 1.0
  • Reference cycles: 0.8
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 3.0
  • UOPS_MITE: 3.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 3 NOPs

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.0
  • Core cycles: 1.0
  • Reference cycles: 0.77
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 4.0
  • UOPS_MITE: 4.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.49
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 4 NOPs

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 5.0
  • Core cycles: 1.0
  • Reference cycles: 0.74
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 5.0
  • UOPS_MITE: 5.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.5
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.0

With unroll_count=500, no inner loop, and 5 NOPs

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
     8:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 6.0
  • Core cycles: 1.16
  • Reference cycles: 0.9
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 6.0
  • UOPS_MITE: 6.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.48
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.52
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 1.16

With unroll_count=500, no inner loop, and 6 NOPs

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	90                   	nop
     5:	90                   	nop
     6:	90                   	nop
     7:	90                   	nop
     8:	90                   	nop
     9:	90                   	nop
  

• Show nanoBench command
• Results:
  • Instructions retired: 7.0
  • Core cycles: 2.0
  • Reference cycles: 1.54
  • UOPS_EXECUTED.THREAD: 1.0
  • RETIRE_SLOTS: 7.0
  • UOPS_MITE: 7.06
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.4
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.6
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 2.0

With loop_count=1000 and unroll_count=10

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.2
  • Core cycles: 1.0
  • Reference cycles: 0.75
  • UOPS_EXECUTED.THREAD: 1.1
  • RETIRE_SLOTS: 1.1
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.6
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=100

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
  

• Show nanoBench command
• Results:
  • Instructions retired: 1.02
  • Core cycles: 1.0
  • Reference cycles: 0.75
  • UOPS_EXECUTED.THREAD: 1.01
  • RETIRE_SLOTS: 1.01
  • UOPS_MITE: 0.01
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 0.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 0.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.01

With unroll_count=200 and no inner loop

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.0
  • Core cycles: 4.0
  • Reference cycles: 3.28
  • UOPS_EXECUTED.THREAD: 4.0
  • RETIRE_SLOTS: 4.0
  • UOPS_MITE: 4.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 2.0
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.0
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 4.02

With loop_count=1000 and unroll_count=2

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
  

• Show nanoBench command
• Results:
  • Instructions retired: 5.0
  • Core cycles: 2.32
  • Reference cycles: 1.75
  • UOPS_EXECUTED.THREAD: 4.51
  • RETIRE_SLOTS: 4.5
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.02
  • UOPS_PORT_0: 2.22
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.29
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=20

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
  

• Show nanoBench command
• Results:
  • Instructions retired: 4.1
  • Core cycles: 2.05
  • Reference cycles: 1.54
  • UOPS_EXECUTED.THREAD: 4.05
  • RETIRE_SLOTS: 4.05
  • UOPS_MITE: 0.03
  • UOPS_MS: 0.02
  • UOPS_PORT_0: 2.02
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 2.03
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.03

With unroll_count=100 and no inner loop

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
  

• Show nanoBench command
• Results:
  • Instructions retired: 8.0
  • Core cycles: 8.0
  • Reference cycles: 6.4
  • UOPS_EXECUTED.THREAD: 8.0
  • RETIRE_SLOTS: 8.0
  • UOPS_MITE: 8.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 4.0
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.0
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 8.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
  

• Show nanoBench command
• Results:
  • Instructions retired: 10.0
  • Core cycles: 4.56
  • Reference cycles: 3.46
  • UOPS_EXECUTED.THREAD: 9.01
  • RETIRE_SLOTS: 9.0
  • UOPS_MITE: 0.27
  • UOPS_MS: 0.04
  • UOPS_PORT_0: 4.5
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.52
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.3

With loop_count=100 and unroll_count=10

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
  

• Show nanoBench command
• Results:
  • Instructions retired: 8.2
  • Core cycles: 4.07
  • Reference cycles: 3.09
  • UOPS_EXECUTED.THREAD: 8.11
  • RETIRE_SLOTS: 8.1
  • UOPS_MITE: 0.13
  • UOPS_MS: 0.03
  • UOPS_PORT_0: 4.06
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 4.06
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.06

With unroll_count=100 and no inner loop

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
    1f:	0f 42 c9             	cmovb  ecx,ecx
    22:	0f 42 d2             	cmovb  edx,edx
    25:	0f 42 c0             	cmovb  eax,eax
    28:	0f 42 ff             	cmovb  edi,edi
    2b:	0f 42 f6             	cmovb  esi,esi
    2e:	0f 42 ed             	cmovb  ebp,ebp
  

• Show nanoBench command
• Results:
  • Instructions retired: 14.0
  • Core cycles: 14.0
  • Reference cycles: 10.56
  • UOPS_EXECUTED.THREAD: 14.0
  • RETIRE_SLOTS: 14.0
  • UOPS_MITE: 14.0
  • UOPS_MS: 0.0
  • UOPS_PORT_0: 7.0
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 7.0
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 14.0

With loop_count=1000 and unroll_count=1

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
    1f:	0f 42 c9             	cmovb  ecx,ecx
    22:	0f 42 d2             	cmovb  edx,edx
    25:	0f 42 c0             	cmovb  eax,eax
    28:	0f 42 ff             	cmovb  edi,edi
    2b:	0f 42 f6             	cmovb  esi,esi
    2e:	0f 42 ed             	cmovb  ebp,ebp
  

• Show nanoBench command
• Results:
  • Instructions retired: 16.0
  • Core cycles: 7.52
  • Reference cycles: 5.62
  • UOPS_EXECUTED.THREAD: 15.01
  • RETIRE_SLOTS: 15.0
  • UOPS_MITE: 0.0
  • UOPS_MS: 0.03
  • UOPS_PORT_0: 7.51
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 7.51
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.0

With loop_count=100 and unroll_count=10

• Code:

     0:	45 0f 42 c0          	cmovb  r8d,r8d
     4:	45 0f 42 c9          	cmovb  r9d,r9d
     8:	45 0f 42 d2          	cmovb  r10d,r10d
     c:	45 0f 42 db          	cmovb  r11d,r11d
    10:	45 0f 42 e4          	cmovb  r12d,r12d
    14:	45 0f 42 ed          	cmovb  r13d,r13d
    18:	45 0f 42 f6          	cmovb  r14d,r14d
    1c:	0f 42 db             	cmovb  ebx,ebx
    1f:	0f 42 c9             	cmovb  ecx,ecx
    22:	0f 42 d2             	cmovb  edx,edx
    25:	0f 42 c0             	cmovb  eax,eax
    28:	0f 42 ff             	cmovb  edi,edi
    2b:	0f 42 f6             	cmovb  esi,esi
    2e:	0f 42 ed             	cmovb  ebp,ebp
  

• Show nanoBench command
• Results:
  • Instructions retired: 14.2
  • Core cycles: 7.09
  • Reference cycles: 5.28
  • UOPS_EXECUTED.THREAD: 14.12
  • RETIRE_SLOTS: 14.1
  • UOPS_MITE: 0.12
  • UOPS_MS: 0.03
  • UOPS_PORT_0: 7.05
  • UOPS_PORT_1: 0.0
  • UOPS_PORT_6: 7.06
  • UOPS_PORT_49: 0.0
  • UOPS_PORT_78: 0.0
  • UOPS_PORT_5B: 0.0
  • UOPS_PORT_5B>=2: 0.0
  • UOPS_PORT_23A: 0.0
  • DIV_CYCLES: 0.0
  • ILD_STALL.LCP: 0.0
  • UOPS_MITE>=1: 0.12