RDTSC - Throughput and Uops

With unroll_count=500 and no inner loop

Code:
```
   0:	0f 31                	rdtsc  
```
Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 27.0
- Reference cycles: 16.11
- UOPS_EXECUTED.THREAD: 15.0
- RETIRE_SLOTS: 18.0
- UOPS_MITE: 2.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 4.0
- UOPS_PORT_1: 5.0
- UOPS_PORT_5: 2.0
- UOPS_PORT_6: 4.0
- UOPS_PORT_23: 0.0
- UOPS_PORT_49: 0.0
- UOPS_PORT_78: 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:	0f 31                	rdtsc  
   2:	90                   	nop

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 27.0
- Reference cycles: 16.16
- UOPS_EXECUTED.THREAD: 15.0
- RETIRE_SLOTS: 19.0
- UOPS_MITE: 3.0
- UOPS_MS: 16.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 4.0
- UOPS_PORT_5: 2.0
- UOPS_PORT_6: 6.0
- UOPS_PORT_23: 0.0
- UOPS_PORT_49: 0.0
- UOPS_PORT_78: 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:	0f 31                	rdtsc  
```
Show nanoBench command
Results:
- Instructions retired: 1.2
- Core cycles: 27.0
- Reference cycles: 16.14
- UOPS_EXECUTED.THREAD: 15.1
- RETIRE_SLOTS: 18.1
- UOPS_MITE: 2.1
- UOPS_MS: 16.0
- UOPS_PORT_0: 3.9
- UOPS_PORT_1: 4.8
- UOPS_PORT_5: 2.1
- UOPS_PORT_6: 4.3
- UOPS_PORT_23: 0.0
- UOPS_PORT_49: 0.0
- UOPS_PORT_78: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.1

With loop_count=100 and unroll_count=100

Code:
```
   0:	0f 31                	rdtsc  
```
Show nanoBench command
Results:
- Instructions retired: 1.02
- Core cycles: 27.0
- Reference cycles: 16.14
- UOPS_EXECUTED.THREAD: 15.01
- RETIRE_SLOTS: 18.01
- UOPS_MITE: 2.01
- UOPS_MS: 16.0
- UOPS_PORT_0: 3.99
- UOPS_PORT_1: 4.98
- UOPS_PORT_5: 2.01
- UOPS_PORT_6: 4.03
- UOPS_PORT_23: 0.0
- UOPS_PORT_49: 0.0
- UOPS_PORT_78: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.01