MUL (R64) - Port Usage

With blocking instructions for port '0':

Code:

   0:	66 44 0f 50 c8       	movmskpd r9d,xmm0
   5:	66 44 0f 50 d0       	movmskpd r10d,xmm0
   a:	66 44 0f 50 d8       	movmskpd r11d,xmm0
   f:	66 44 0f 50 e0       	movmskpd r12d,xmm0
  14:	66 0f 50 d8          	movmskpd ebx,xmm0
  18:	66 0f 50 c8          	movmskpd ecx,xmm0
  1c:	66 44 0f 50 c8       	movmskpd r9d,xmm0
  21:	66 44 0f 50 d0       	movmskpd r10d,xmm0
  26:	66 44 0f 50 d8       	movmskpd r11d,xmm0
  2b:	66 44 0f 50 e0       	movmskpd r12d,xmm0
  30:	49 f7 e0             	mul    r8

Init:

MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOVUPD XMM0, [R14]

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.2
- Reference cycles: 9.23
- UOPS_PORT_0: 11.0
- UOPS_PORT_1: 1.4
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 13.0

⇨ One μop that can only use port '0'

With blocking instructions for port '1':

Code:

   0:	66 0f 58 c1          	addpd  xmm0,xmm1
   4:	66 0f 58 d1          	addpd  xmm2,xmm1
   8:	66 0f 58 d9          	addpd  xmm3,xmm1
   c:	66 0f 58 e1          	addpd  xmm4,xmm1
  10:	66 0f 58 e9          	addpd  xmm5,xmm1
  14:	66 0f 58 f1          	addpd  xmm6,xmm1
  18:	66 0f 58 f9          	addpd  xmm7,xmm1
  1c:	66 44 0f 58 c1       	addpd  xmm8,xmm1
  21:	66 44 0f 58 c9       	addpd  xmm9,xmm1
  26:	66 44 0f 58 d1       	addpd  xmm10,xmm1
  2b:	49 f7 e0             	mul    r8

Init:

MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOVUPD XMM0, [R14];
MOVUPD XMM1, [R14];
MOVUPD XMM2, [R14];
MOVUPD XMM3, [R14];
MOVUPD XMM4, [R14];
MOVUPD XMM5, [R14];
MOVUPD XMM6, [R14];
MOVUPD XMM7, [R14];
MOVUPD XMM8, [R14];
MOVUPD XMM9, [R14];
MOVUPD XMM10, [R14];
MOVUPD XMM11, [R14];
MOVUPD XMM12, [R14]

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.0
- Reference cycles: 9.2
- UOPS_PORT_0: 2.25
- UOPS_PORT_1: 11.0
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 13.0

⇨ One μop that can only use port '1'

With blocking instructions for ports {'0', '1', '5'}:

Code:

   0:	b7 00                	mov    bh,0x0
   2:	b5 00                	mov    ch,0x0
   4:	b7 00                	mov    bh,0x0
   6:	b5 00                	mov    ch,0x0
   8:	b7 00                	mov    bh,0x0
   a:	b5 00                	mov    ch,0x0
   c:	b7 00                	mov    bh,0x0
   e:	b5 00                	mov    ch,0x0
  10:	b7 00                	mov    bh,0x0
  12:	b5 00                	mov    ch,0x0
  14:	b7 00                	mov    bh,0x0
  16:	b5 00                	mov    ch,0x0
  18:	b7 00                	mov    bh,0x0
  1a:	b5 00                	mov    ch,0x0
  1c:	b7 00                	mov    bh,0x0
  1e:	b5 00                	mov    ch,0x0
  20:	b7 00                	mov    bh,0x0
  22:	b5 00                	mov    ch,0x0
  24:	49 f7 e0             	mul    r8

Show nanoBench command
Results:
- Instructions retired: 19.0
- Core cycles: 7.55
- Reference cycles: 6.3
- UOPS_PORT_0: 6.89
- UOPS_PORT_1: 6.58
- UOPS_PORT_2: 0.0
- UOPS_PORT_3: 0.0
- UOPS_PORT_4: 0.0
- UOPS_PORT_5: 0.0
- UOPS_RETIRED.ANY: 21.0

⇨ One μop that can only use ports {'0', '1', '5'}