VPSRLW (YMM, YMM, XMM) - Port Usage

With blocking instructions for port '5':

Code:

   0:	41 0f 6e c0          	movd   mm0,r8d
   4:	41 0f 6e c8          	movd   mm1,r8d
   8:	41 0f 6e d0          	movd   mm2,r8d
   c:	41 0f 6e d8          	movd   mm3,r8d
  10:	41 0f 6e e0          	movd   mm4,r8d
  14:	41 0f 6e e8          	movd   mm5,r8d
  18:	41 0f 6e f0          	movd   mm6,r8d
  1c:	41 0f 6e f8          	movd   mm7,r8d
  20:	41 0f 6e c0          	movd   mm0,r8d
  24:	41 0f 6e c8          	movd   mm1,r8d
  28:	c5 f5 d1 c2          	vpsrlw ymm0,ymm1,xmm2

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
VXORPS YMM1, YMM1, YMM1;
VXORPS XMM2, XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 11.1
- Reference cycles: 8.54
- UOPS_PORT_5: 10.99

⇨ One μop that can only use port '5'

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

Code:

   0:	c5 d9 58 dd          	vaddpd xmm3,xmm4,xmm5
   4:	c5 d9 58 f5          	vaddpd xmm6,xmm4,xmm5
   8:	c5 d9 58 fd          	vaddpd xmm7,xmm4,xmm5
   c:	c5 59 58 c5          	vaddpd xmm8,xmm4,xmm5
  10:	c5 59 58 cd          	vaddpd xmm9,xmm4,xmm5
  14:	c5 59 58 d5          	vaddpd xmm10,xmm4,xmm5
  18:	c5 59 58 dd          	vaddpd xmm11,xmm4,xmm5
  1c:	c5 59 58 e5          	vaddpd xmm12,xmm4,xmm5
  20:	c5 d9 58 dd          	vaddpd xmm3,xmm4,xmm5
  24:	c5 d9 58 f5          	vaddpd xmm6,xmm4,xmm5
  28:	c5 f5 d1 c2          	vpsrlw ymm0,ymm1,xmm2

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x4000000040000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
VMOVUPD XMM4, [R14];
VMOVUPD XMM5, [R14];
VXORPS YMM1, YMM1, YMM1;
VXORPS XMM2, XMM2, XMM2

Show nanoBench command
Results:
- Instructions retired: 11.0
- Core cycles: 5.6
- Reference cycles: 3.75
- UOPS_PORT_0: 5.51
- UOPS_PORT_1: 5.49

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