DIVPS (XMM, M128) - Port Usage (IACA 2.2)


With blocking instructions for port '0':

Throughput Analysis Report
--------------------------
Block Throughput: 29.00 Cycles       Throughput Bottleneck: Port0

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 29.0   14.0 | 0.0  | 1.0    1.0  | 0.0    0.0  | 0.0  | 0.0  |
-------------------------------------------------------------------------


| Num Of |                   Ports pressure in cycles                   |    |
|  Uops  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |    |
------------------------------------------------------------------------------
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   2^   | 1.0    14.0 |      | 1.0    1.0  |             |      |      | CP | divps xmm2, xmmword ptr [r14]
Total Num Of Uops: 30
⇨ One μop that can only use port '0'

With blocking instructions for port '2':

Throughput Analysis Report
--------------------------
Block Throughput: 29.00 Cycles       Throughput Bottleneck: PORT2_AGU, Port2_DATA

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 1.0    14.0 | 0.0  | 29.0   29.0 | 0.0    0.0  | 0.0  | 0.0  |
-------------------------------------------------------------------------


| Num Of |                   Ports pressure in cycles                   |    |
|  Uops  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |    |
------------------------------------------------------------------------------
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm5, dword ptr [r14+0x50]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm6, dword ptr [r14+0x54]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm7, dword ptr [r14+0x58]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm8, dword ptr [r14+0x5c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm9, dword ptr [r14+0x60]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm10, dword ptr [r14+0x64]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm11, dword ptr [r14+0x68]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm12, dword ptr [r14+0x6c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm5, dword ptr [r14+0x50]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm6, dword ptr [r14+0x54]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm7, dword ptr [r14+0x58]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm8, dword ptr [r14+0x5c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm9, dword ptr [r14+0x60]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm10, dword ptr [r14+0x64]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm11, dword ptr [r14+0x68]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm12, dword ptr [r14+0x6c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|   2^   | 1.0    14.0 |      | 1.0    1.0  |             |      |      | CP | divps xmm2, xmmword ptr [r14]
Total Num Of Uops: 58
⇨ One μop that can only use port '2'

With an indexed addressing mode


With blocking instructions for port '0':

Throughput Analysis Report
--------------------------
Block Throughput: 29.00 Cycles       Throughput Bottleneck: Port0

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 29.0   14.0 | 0.0  | 1.0    1.0  | 0.0    0.0  | 0.0  | 0.0  |
-------------------------------------------------------------------------


| Num Of |                   Ports pressure in cycles                   |    |
|  Uops  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |    |
------------------------------------------------------------------------------
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r12d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ebx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd ecx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd edx, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r8d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r9d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r10d, xmm0
|   1    | 1.0         |      |             |             |      |      | CP | movmskpd r11d, xmm0
|   2^   | 1.0    14.0 |      | 1.0    1.0  |             |      |      | CP | divps xmm2, xmmword ptr [r14]
Total Num Of Uops: 30
⇨ One μop that can only use port '0'

With blocking instructions for port '2':

Throughput Analysis Report
--------------------------
Block Throughput: 29.00 Cycles       Throughput Bottleneck: PORT2_AGU, Port2_DATA

Port Binding In Cycles Per Iteration:
-------------------------------------------------------------------------
|  Port  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |
-------------------------------------------------------------------------
| Cycles | 1.0    14.0 | 0.0  | 29.0   29.0 | 0.0    0.0  | 0.0  | 0.0  |
-------------------------------------------------------------------------


| Num Of |                   Ports pressure in cycles                   |    |
|  Uops  |  0   -  DV  |  1   |  2   -  D   |  3   -  D   |  4   |  5   |    |
------------------------------------------------------------------------------
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm5, dword ptr [r14+0x50]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm6, dword ptr [r14+0x54]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm7, dword ptr [r14+0x58]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm8, dword ptr [r14+0x5c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm9, dword ptr [r14+0x60]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm10, dword ptr [r14+0x64]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm11, dword ptr [r14+0x68]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm12, dword ptr [r14+0x6c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm5, dword ptr [r14+0x50]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm6, dword ptr [r14+0x54]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm7, dword ptr [r14+0x58]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm8, dword ptr [r14+0x5c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm9, dword ptr [r14+0x60]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm10, dword ptr [r14+0x64]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm11, dword ptr [r14+0x68]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm12, dword ptr [r14+0x6c]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm0, dword ptr [r14+0x40]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm1, dword ptr [r14+0x44]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm3, dword ptr [r14+0x48]
|  2*^   |             |      | 1.0    1.0  |             |      |      | CP | cvtss2sd xmm4, dword ptr [r14+0x4c]
|   2^   | 1.0    14.0 |      | 1.0    1.0  |             |      |      | CP | divps xmm2, xmmword ptr [r14]
Total Num Of Uops: 58
⇨ One μop that can only use port '2'