VDIVPS (YMM, YMM, YMM) - Port Usage

With blocking instructions for port '0':

Code:

   0:	41 0f 7e c0          	movd   r8d,mm0
   4:	41 0f 7e c1          	movd   r9d,mm0
   8:	41 0f 7e c2          	movd   r10d,mm0
   c:	41 0f 7e c3          	movd   r11d,mm0
  10:	41 0f 7e c4          	movd   r12d,mm0
  14:	0f 7e c3             	movd   ebx,mm0
  17:	0f 7e c1             	movd   ecx,mm0
  1a:	0f 7e c2             	movd   edx,mm0
  1d:	41 0f 7e c0          	movd   r8d,mm0
  21:	41 0f 7e c1          	movd   r9d,mm0
  25:	41 0f 7e c2          	movd   r10d,mm0
  29:	41 0f 7e c3          	movd   r11d,mm0
  2d:	41 0f 7e c4          	movd   r12d,mm0
  31:	0f 7e c3             	movd   ebx,mm0
  34:	0f 7e c1             	movd   ecx,mm0
  37:	0f 7e c2             	movd   edx,mm0
  3a:	41 0f 7e c0          	movd   r8d,mm0
  3e:	41 0f 7e c1          	movd   r9d,mm0
  42:	41 0f 7e c2          	movd   r10d,mm0
  46:	41 0f 7e c3          	movd   r11d,mm0
  4a:	c5 fc 5e d1          	vdivps ymm2,ymm0,ymm1

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
PXOR MM0, MM0;
VZEROALL;
MOV RAX, 0x54ed392654ed3926;
MOV RBX, 0x3f99f4c03f99f4c0;
MOV [R14+0], RBX;
MOV [R14+8], RBX;
MOV [R14+16], RBX;
MOV [R14+24], RBX;
MOV [R14+32], RBX;
MOV [R14+40], RBX;
MOV [R14+48], RBX;
MOV [R14+56], RBX;
MOV [R14+64], RAX;
MOV [R14+72], RAX;
MOV [R14+80], RAX;
MOV [R14+88], RAX;
MOV [R14+96], RAX;
MOV [R14+104], RAX;
MOV [R14+112], RAX;
MOV [R14+120], RAX;
VMOVUPS YMM0, [R14+64];
VMOVUPS YMM1, [R14]

Show nanoBench command
Results:
- Instructions retired: 21.0
- Core cycles: 22.36
- Reference cycles: 23.6
- UOPS_PORT_0: 21.98

⇨ 2 μops that can only use port '0'

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

Code:

   0:	45 8d 06             	lea    r8d,[r14]
   3:	45 8d 0e             	lea    r9d,[r14]
   6:	45 8d 16             	lea    r10d,[r14]
   9:	45 8d 1e             	lea    r11d,[r14]
   c:	45 8d 26             	lea    r12d,[r14]
   f:	41 8d 1e             	lea    ebx,[r14]
  12:	41 8d 0e             	lea    ecx,[r14]
  15:	41 8d 16             	lea    edx,[r14]
  18:	45 8d 06             	lea    r8d,[r14]
  1b:	45 8d 0e             	lea    r9d,[r14]
  1e:	45 8d 16             	lea    r10d,[r14]
  21:	45 8d 1e             	lea    r11d,[r14]
  24:	45 8d 26             	lea    r12d,[r14]
  27:	41 8d 1e             	lea    ebx,[r14]
  2a:	41 8d 0e             	lea    ecx,[r14]
  2d:	41 8d 16             	lea    edx,[r14]
  30:	45 8d 06             	lea    r8d,[r14]
  33:	45 8d 0e             	lea    r9d,[r14]
  36:	45 8d 16             	lea    r10d,[r14]
  39:	45 8d 1e             	lea    r11d,[r14]
  3c:	45 8d 26             	lea    r12d,[r14]
  3f:	41 8d 1e             	lea    ebx,[r14]
  42:	41 8d 0e             	lea    ecx,[r14]
  45:	41 8d 16             	lea    edx,[r14]
  48:	45 8d 06             	lea    r8d,[r14]
  4b:	45 8d 0e             	lea    r9d,[r14]
  4e:	45 8d 16             	lea    r10d,[r14]
  51:	45 8d 1e             	lea    r11d,[r14]
  54:	45 8d 26             	lea    r12d,[r14]
  57:	41 8d 1e             	lea    ebx,[r14]
  5a:	41 8d 0e             	lea    ecx,[r14]
  5d:	41 8d 16             	lea    edx,[r14]
  60:	45 8d 06             	lea    r8d,[r14]
  63:	45 8d 0e             	lea    r9d,[r14]
  66:	45 8d 16             	lea    r10d,[r14]
  69:	45 8d 1e             	lea    r11d,[r14]
  6c:	45 8d 26             	lea    r12d,[r14]
  6f:	41 8d 1e             	lea    ebx,[r14]
  72:	41 8d 0e             	lea    ecx,[r14]
  75:	41 8d 16             	lea    edx,[r14]
  78:	c5 fc 5e d1          	vdivps ymm2,ymm0,ymm1

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x54ed392654ed3926;
MOV RBX, 0x3f99f4c03f99f4c0;
MOV [R14+0], RBX;
MOV [R14+8], RBX;
MOV [R14+16], RBX;
MOV [R14+24], RBX;
MOV [R14+32], RBX;
MOV [R14+40], RBX;
MOV [R14+48], RBX;
MOV [R14+56], RBX;
MOV [R14+64], RAX;
MOV [R14+72], RAX;
MOV [R14+80], RAX;
MOV [R14+88], RAX;
MOV [R14+96], RAX;
MOV [R14+104], RAX;
MOV [R14+112], RAX;
MOV [R14+120], RAX;
VMOVUPS YMM0, [R14+64];
VMOVUPS YMM1, [R14]

Show nanoBench command
Results:
- Instructions retired: 41.0
- Core cycles: 20.24
- Reference cycles: 21.2
- UOPS_PORT_1: 20.0
- UOPS_PORT_5: 20.0

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

Code:

   0:	0f 6f c1             	movq   mm0,mm1
   3:	0f 6f d1             	movq   mm2,mm1
   6:	0f 6f d9             	movq   mm3,mm1
   9:	0f 6f e1             	movq   mm4,mm1
   c:	0f 6f e9             	movq   mm5,mm1
   f:	0f 6f f1             	movq   mm6,mm1
  12:	0f 6f f9             	movq   mm7,mm1
  15:	0f 6f c1             	movq   mm0,mm1
  18:	0f 6f d1             	movq   mm2,mm1
  1b:	0f 6f d9             	movq   mm3,mm1
  1e:	0f 6f e1             	movq   mm4,mm1
  21:	0f 6f e9             	movq   mm5,mm1
  24:	0f 6f f1             	movq   mm6,mm1
  27:	0f 6f f9             	movq   mm7,mm1
  2a:	0f 6f c1             	movq   mm0,mm1
  2d:	0f 6f d1             	movq   mm2,mm1
  30:	0f 6f d9             	movq   mm3,mm1
  33:	0f 6f e1             	movq   mm4,mm1
  36:	0f 6f e9             	movq   mm5,mm1
  39:	0f 6f f1             	movq   mm6,mm1
  3c:	0f 6f f9             	movq   mm7,mm1
  3f:	0f 6f c1             	movq   mm0,mm1
  42:	0f 6f d1             	movq   mm2,mm1
  45:	0f 6f d9             	movq   mm3,mm1
  48:	0f 6f e1             	movq   mm4,mm1
  4b:	0f 6f e9             	movq   mm5,mm1
  4e:	0f 6f f1             	movq   mm6,mm1
  51:	0f 6f f9             	movq   mm7,mm1
  54:	0f 6f c1             	movq   mm0,mm1
  57:	0f 6f d1             	movq   mm2,mm1
  5a:	0f 6f d9             	movq   mm3,mm1
  5d:	0f 6f e1             	movq   mm4,mm1
  60:	0f 6f e9             	movq   mm5,mm1
  63:	0f 6f f1             	movq   mm6,mm1
  66:	0f 6f f9             	movq   mm7,mm1
  69:	0f 6f c1             	movq   mm0,mm1
  6c:	0f 6f d1             	movq   mm2,mm1
  6f:	0f 6f d9             	movq   mm3,mm1
  72:	0f 6f e1             	movq   mm4,mm1
  75:	0f 6f e9             	movq   mm5,mm1
  78:	0f 6f f1             	movq   mm6,mm1
  7b:	0f 6f f9             	movq   mm7,mm1
  7e:	0f 6f c1             	movq   mm0,mm1
  81:	0f 6f d1             	movq   mm2,mm1
  84:	0f 6f d9             	movq   mm3,mm1
  87:	0f 6f e1             	movq   mm4,mm1
  8a:	0f 6f e9             	movq   mm5,mm1
  8d:	0f 6f f1             	movq   mm6,mm1
  90:	0f 6f f9             	movq   mm7,mm1
  93:	0f 6f c1             	movq   mm0,mm1
  96:	0f 6f d1             	movq   mm2,mm1
  99:	0f 6f d9             	movq   mm3,mm1
  9c:	0f 6f e1             	movq   mm4,mm1
  9f:	0f 6f e9             	movq   mm5,mm1
  a2:	0f 6f f1             	movq   mm6,mm1
  a5:	0f 6f f9             	movq   mm7,mm1
  a8:	0f 6f c1             	movq   mm0,mm1
  ab:	0f 6f d1             	movq   mm2,mm1
  ae:	0f 6f d9             	movq   mm3,mm1
  b1:	0f 6f e1             	movq   mm4,mm1
  b4:	c5 fc 5e d1          	vdivps ymm2,ymm0,ymm1

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
PXOR MM1, MM1;
VZEROALL;
MOV RAX, 0x54ed392654ed3926;
MOV RBX, 0x3f99f4c03f99f4c0;
MOV [R14+0], RBX;
MOV [R14+8], RBX;
MOV [R14+16], RBX;
MOV [R14+24], RBX;
MOV [R14+32], RBX;
MOV [R14+40], RBX;
MOV [R14+48], RBX;
MOV [R14+56], RBX;
MOV [R14+64], RAX;
MOV [R14+72], RAX;
MOV [R14+80], RAX;
MOV [R14+88], RAX;
MOV [R14+96], RAX;
MOV [R14+104], RAX;
MOV [R14+112], RAX;
MOV [R14+120], RAX;
VMOVUPS YMM0, [R14+64];
VMOVUPS YMM1, [R14]

Show nanoBench command
Results:
- Instructions retired: 61.0
- Core cycles: 22.3
- Reference cycles: 23.75
- UOPS_PORT_1: 21.25
- UOPS_PORT_0: 20.56
- UOPS_PORT_5: 21.19

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