MUL (R32) - Port Usage (IACA 2.3)
With blocking instructions for port '1':
Throughput Analysis Report
--------------------------
Block Throughput: 11.00 Cycles Throughput Bottleneck: Backend. Port1
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 11.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 1.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
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| 1 | | 1.0 | | | | | | | CP | addpd xmm0, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm2, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm3, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm4, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm5, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm6, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm7, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm8, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm9, xmm1
| 1 | | 1.0 | | | | | | | CP | addpd xmm10, xmm1
| 2 | | 1.0 | | | | 1.0 | | | CP | mul r8d
Total Num Of Uops: 12
⇨ One μop that can only use port '1'
With blocking instructions for port '5':
Throughput Analysis Report
--------------------------
Block Throughput: 11.00 Cycles Throughput Bottleneck: Backend. Port5
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.0 0.0 | 1.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 11.0 | 0.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 1 | | | | | | 1.0 | | | CP | aesdec xmm0, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm2, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm3, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm4, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm5, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm6, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm7, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm8, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm9, xmm1
| 1 | | | | | | 1.0 | | | CP | aesdec xmm10, xmm1
| 2 | | 1.0 | | | | 1.0 | | | CP | mul r8d
Total Num Of Uops: 12
⇨ One μop that can only use port '5'