LOOPNE (Rel8) - Throughput and Uops

With RCX=0

With unroll_count=500 and no inner loop

Code:

   0:	48 c7 c1 00 00 00 00 	mov    rcx,0x0
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 6.03
- Reference cycles: 3.88
- UOPS_EXECUTED.THREAD: 12.0
- RETIRE_SLOTS: 12.0
- UOPS_MITE: 4.97
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.99
- UOPS_PORT_1: 2.71
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.31
- UOPS_PORT_6: 4.01
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.96

With loop_count=1000 and unroll_count=10

Code:

   0:	48 c7 c1 00 00 00 00 	mov    rcx,0x0
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.2
- Core cycles: 6.1
- Reference cycles: 3.98
- UOPS_EXECUTED.THREAD: 12.1
- RETIRE_SLOTS: 12.1
- UOPS_MITE: 5.1
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.9
- UOPS_PORT_1: 2.7
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.3
- UOPS_PORT_6: 4.2
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 2.1

With loop_count=100 and unroll_count=100

Code:

   0:	48 c7 c1 00 00 00 00 	mov    rcx,0x0
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.02
- Core cycles: 6.06
- Reference cycles: 3.95
- UOPS_EXECUTED.THREAD: 12.01
- RETIRE_SLOTS: 12.01
- UOPS_MITE: 4.96
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.98
- UOPS_PORT_1: 2.67
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.33
- UOPS_PORT_6: 4.03
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.96

With RCX=1

With unroll_count=500 and no inner loop

Code:

   0:	48 c7 c1 01 00 00 00 	mov    rcx,0x1
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 6.0
- Reference cycles: 3.96
- UOPS_EXECUTED.THREAD: 12.0
- RETIRE_SLOTS: 12.0
- UOPS_MITE: 5.0
- UOPS_MS: 7.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 2.67
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.33
- UOPS_PORT_6: 4.0
- UOPS_PORT_7: 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:	48 c7 c1 01 00 00 00 	mov    rcx,0x1
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.2
- Core cycles: 6.1
- Reference cycles: 3.98
- UOPS_EXECUTED.THREAD: 12.1
- RETIRE_SLOTS: 12.1
- UOPS_MITE: 5.1
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.9
- UOPS_PORT_1: 2.7
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.3
- UOPS_PORT_6: 4.2
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 2.1

With loop_count=100 and unroll_count=100

Code:

   0:	48 c7 c1 01 00 00 00 	mov    rcx,0x1
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.02
- Core cycles: 6.01
- Reference cycles: 3.92
- UOPS_EXECUTED.THREAD: 12.01
- RETIRE_SLOTS: 12.01
- UOPS_MITE: 5.01
- UOPS_MS: 7.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 2.75
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.25
- UOPS_PORT_6: 4.01
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 2.01

With RCX=2

With unroll_count=500 and no inner loop

Code:

   0:	48 c7 c1 02 00 00 00 	mov    rcx,0x2
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 6.0
- Reference cycles: 3.83
- UOPS_EXECUTED.THREAD: 11.99
- RETIRE_SLOTS: 12.0
- UOPS_MITE: 4.98
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.99
- UOPS_PORT_1: 2.68
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.33
- UOPS_PORT_6: 4.01
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.98

With loop_count=1000 and unroll_count=10

Code:

   0:	48 c7 c1 02 00 00 00 	mov    rcx,0x2
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.2
- Core cycles: 6.1
- Reference cycles: 3.98
- UOPS_EXECUTED.THREAD: 12.1
- RETIRE_SLOTS: 12.1
- UOPS_MITE: 5.1
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.9
- UOPS_PORT_1: 2.7
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.3
- UOPS_PORT_6: 4.2
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 2.1

With loop_count=100 and unroll_count=100

Code:

   0:	48 c7 c1 02 00 00 00 	mov    rcx,0x2
   7:	e0 00                	loopne 0x9

Show nanoBench command
Results:
- Instructions retired: 2.02
- Core cycles: 6.06
- Reference cycles: 3.95
- UOPS_EXECUTED.THREAD: 12.01
- RETIRE_SLOTS: 12.01
- UOPS_MITE: 4.96
- UOPS_MS: 7.0
- UOPS_PORT_0: 2.98
- UOPS_PORT_1: 2.67
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 2.33
- UOPS_PORT_6: 4.03
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.97