VSQRTPD (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:	41 0f 7e c4          	movd   r12d,mm0
  4e:	0f 7e c3             	movd   ebx,mm0
  51:	0f 7e c1             	movd   ecx,mm0
  54:	0f 7e c2             	movd   edx,mm0
  57:	41 0f 7e c0          	movd   r8d,mm0
  5b:	41 0f 7e c1          	movd   r9d,mm0
  5f:	41 0f 7e c2          	movd   r10d,mm0
  63:	41 0f 7e c3          	movd   r11d,mm0
  67:	41 0f 7e c4          	movd   r12d,mm0
  6b:	0f 7e c3             	movd   ebx,mm0
  6e:	0f 7e c1             	movd   ecx,mm0
  71:	0f 7e c2             	movd   edx,mm0
  74:	c5 fd 51 d0          	vsqrtpd ymm2,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
PXOR MM0, MM0;
VZEROALL;
MOV RAX, 0x3ff0000000000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM0, [R14]

Show nanoBench command
Results:
- Instructions retired: 33.0
- Core cycles: 34.71
- Reference cycles: 33.72
- UOPS_PORT_0: 34.0

⇨ 2 μops that can only use port '0'

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:	41 0f 6e d0          	movd   mm2,r8d
  2c:	41 0f 6e d8          	movd   mm3,r8d
  30:	41 0f 6e e0          	movd   mm4,r8d
  34:	41 0f 6e e8          	movd   mm5,r8d
  38:	41 0f 6e f0          	movd   mm6,r8d
  3c:	41 0f 6e f8          	movd   mm7,r8d
  40:	41 0f 6e c0          	movd   mm0,r8d
  44:	41 0f 6e c8          	movd   mm1,r8d
  48:	41 0f 6e d0          	movd   mm2,r8d
  4c:	41 0f 6e d8          	movd   mm3,r8d
  50:	41 0f 6e e0          	movd   mm4,r8d
  54:	41 0f 6e e8          	movd   mm5,r8d
  58:	41 0f 6e f0          	movd   mm6,r8d
  5c:	41 0f 6e f8          	movd   mm7,r8d
  60:	41 0f 6e c0          	movd   mm0,r8d
  64:	41 0f 6e c8          	movd   mm1,r8d
  68:	41 0f 6e d0          	movd   mm2,r8d
  6c:	41 0f 6e d8          	movd   mm3,r8d
  70:	41 0f 6e e0          	movd   mm4,r8d
  74:	41 0f 6e e8          	movd   mm5,r8d
  78:	41 0f 6e f0          	movd   mm6,r8d
  7c:	41 0f 6e f8          	movd   mm7,r8d
  80:	c5 fd 51 d0          	vsqrtpd ymm2,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x3ff0000000000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM0, [R14]

Show nanoBench command
Results:
- Instructions retired: 33.0
- Core cycles: 32.19
- Reference cycles: 30.97
- UOPS_PORT_5: 32.03

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

Code:

   0:	66 41 c1 c0 00       	rol    r8w,0x0
   5:	66 41 c1 c1 00       	rol    r9w,0x0
   a:	66 41 c1 c2 00       	rol    r10w,0x0
   f:	66 41 c1 c3 00       	rol    r11w,0x0
  14:	66 41 c1 c4 00       	rol    r12w,0x0
  19:	66 c1 c3 00          	rol    bx,0x0
  1d:	66 c1 c1 00          	rol    cx,0x0
  21:	66 c1 c2 00          	rol    dx,0x0
  25:	66 41 c1 c0 00       	rol    r8w,0x0
  2a:	66 41 c1 c1 00       	rol    r9w,0x0
  2f:	66 41 c1 c2 00       	rol    r10w,0x0
  34:	66 41 c1 c3 00       	rol    r11w,0x0
  39:	66 41 c1 c4 00       	rol    r12w,0x0
  3e:	66 c1 c3 00          	rol    bx,0x0
  42:	66 c1 c1 00          	rol    cx,0x0
  46:	66 c1 c2 00          	rol    dx,0x0
  4a:	66 41 c1 c0 00       	rol    r8w,0x0
  4f:	66 41 c1 c1 00       	rol    r9w,0x0
  54:	66 41 c1 c2 00       	rol    r10w,0x0
  59:	66 41 c1 c3 00       	rol    r11w,0x0
  5e:	66 41 c1 c4 00       	rol    r12w,0x0
  63:	66 c1 c3 00          	rol    bx,0x0
  67:	66 c1 c1 00          	rol    cx,0x0
  6b:	66 c1 c2 00          	rol    dx,0x0
  6f:	66 41 c1 c0 00       	rol    r8w,0x0
  74:	66 41 c1 c1 00       	rol    r9w,0x0
  79:	66 41 c1 c2 00       	rol    r10w,0x0
  7e:	66 41 c1 c3 00       	rol    r11w,0x0
  83:	66 41 c1 c4 00       	rol    r12w,0x0
  88:	66 c1 c3 00          	rol    bx,0x0
  8c:	66 c1 c1 00          	rol    cx,0x0
  90:	66 c1 c2 00          	rol    dx,0x0
  94:	66 41 c1 c0 00       	rol    r8w,0x0
  99:	66 41 c1 c1 00       	rol    r9w,0x0
  9e:	66 41 c1 c2 00       	rol    r10w,0x0
  a3:	66 41 c1 c3 00       	rol    r11w,0x0
  a8:	66 41 c1 c4 00       	rol    r12w,0x0
  ad:	66 c1 c3 00          	rol    bx,0x0
  b1:	66 c1 c1 00          	rol    cx,0x0
  b5:	66 c1 c2 00          	rol    dx,0x0
  b9:	66 41 c1 c0 00       	rol    r8w,0x0
  be:	66 41 c1 c1 00       	rol    r9w,0x0
  c3:	66 41 c1 c2 00       	rol    r10w,0x0
  c8:	66 41 c1 c3 00       	rol    r11w,0x0
  cd:	66 41 c1 c4 00       	rol    r12w,0x0
  d2:	66 c1 c3 00          	rol    bx,0x0
  d6:	66 c1 c1 00          	rol    cx,0x0
  da:	66 c1 c2 00          	rol    dx,0x0
  de:	66 41 c1 c0 00       	rol    r8w,0x0
  e3:	66 41 c1 c1 00       	rol    r9w,0x0
  e8:	66 41 c1 c2 00       	rol    r10w,0x0
  ed:	66 41 c1 c3 00       	rol    r11w,0x0
  f2:	66 41 c1 c4 00       	rol    r12w,0x0
  f7:	66 c1 c3 00          	rol    bx,0x0
  fb:	66 c1 c1 00          	rol    cx,0x0
  ff:	66 c1 c2 00          	rol    dx,0x0
 103:	66 41 c1 c0 00       	rol    r8w,0x0
 108:	66 41 c1 c1 00       	rol    r9w,0x0
 10d:	66 41 c1 c2 00       	rol    r10w,0x0
 112:	66 41 c1 c3 00       	rol    r11w,0x0
 117:	66 41 c1 c4 00       	rol    r12w,0x0
 11c:	66 c1 c3 00          	rol    bx,0x0
 120:	66 c1 c1 00          	rol    cx,0x0
 124:	66 c1 c2 00          	rol    dx,0x0
 128:	c5 fd 51 d0          	vsqrtpd ymm2,ymm0

Init:

MOV R15, 10000;
L: VADDPS YMM0, YMM1, YMM1;
VADDPS YMM0, YMM1, YMM1;
DEC R15;
JNZ L;
VZEROALL;
MOV RAX, 0x3ff0000000000000;
MOV [R14+0], RAX;
MOV [R14+8], RAX;
MOV [R14+16], RAX;
MOV [R14+24], RAX;
VMOVUPD YMM0, [R14]

Show nanoBench command
Results:
- Instructions retired: 65.0
- Core cycles: 34.94
- Reference cycles: 33.78
- UOPS_PORT_5: 33.53
- UOPS_PORT_0: 33.53

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