PCMPESTRM (XMM, XMM, I8) - Throughput and Uops

With unroll_count=500 and no inner loop

Code:

   0:	66 0f 3a 60 ca 02    	pcmpestrm xmm1,xmm2,0x2

Init:

VZEROALL;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 1.0
- Core cycles: 5.0
- Reference cycles: 3.95
- UOPS_EXECUTED.THREAD: 9.0
- RETIRE_SLOTS: 9.0
- UOPS_MITE: 4.0
- UOPS_MS: 5.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 1.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 4.0
- UOPS_PORT_6: 1.0
- UOPS_PORT_7: 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:	66 0f 3a 60 ca 02    	pcmpestrm xmm1,xmm2,0x2
   6:	90                   	nop

Init:

VZEROALL;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 2.0
- Core cycles: 6.0
- Reference cycles: 4.83
- UOPS_EXECUTED.THREAD: 9.0
- RETIRE_SLOTS: 10.0
- UOPS_MITE: 5.0
- UOPS_MS: 5.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 1.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 4.0
- UOPS_PORT_6: 1.0
- 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:	66 0f 3a 60 ca 02    	pcmpestrm xmm1,xmm2,0x2

Init:

VZEROALL;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 1.2
- Core cycles: 5.1
- Reference cycles: 4.0
- UOPS_EXECUTED.THREAD: 9.1
- RETIRE_SLOTS: 9.1
- UOPS_MITE: 4.1
- UOPS_MS: 5.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 1.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 4.0
- UOPS_PORT_6: 1.1
- UOPS_PORT_7: 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:	66 0f 3a 60 ca 02    	pcmpestrm xmm1,xmm2,0x2

Init:

VZEROALL;
PXOR XMM1, XMM1;
PXOR XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 1.02
- Core cycles: 5.01
- Reference cycles: 3.94
- UOPS_EXECUTED.THREAD: 9.01
- RETIRE_SLOTS: 9.01
- UOPS_MITE: 4.01
- UOPS_MS: 5.0
- UOPS_PORT_0: 3.0
- UOPS_PORT_1: 1.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 4.0
- UOPS_PORT_6: 1.01
- UOPS_PORT_7: 0.0
- DIV_CYCLES: 0.0
- ILD_STALL.LCP: 0.0
- UOPS_MITE>=1: 1.01