MUL (R64) - Port Usage (IACA 3.0)
With blocking instructions for port '1':
Throughput Analysis Report
--------------------------
Block Throughput: 11.00 Cycles Throughput Bottleneck: Backend
Loop Count: 22
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 | 0.0 | 1.0 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm0, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm2, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm3, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm4, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm5, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm6, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm7, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm8, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm9, xmm1
| 1 | | 1.0 | | | | | | | cvtdq2ps xmm10, xmm1
| 2 | | 1.0 | | | | | 1.0 | | mul r8
Total Num Of Uops: 12
⇨ One μop that can only use port '1'
With blocking instructions for ports {'0', '6'}:
Throughput Analysis Report
--------------------------
Block Throughput: 6.47 Cycles Throughput Bottleneck: Backend
Loop Count: 22
Port Binding In Cycles Per Iteration:
--------------------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
--------------------------------------------------------------------------------------------------
| Cycles | 6.5 0.0 | 1.0 | 0.0 0.0 | 0.0 0.0 | 0.0 | 0.0 | 6.5 | 0.0 |
--------------------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
-----------------------------------------------------------------------------------------
| 1 | 1.0 | | | | | | | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar bh, 0x0
| 1 | 0.5 | | | | | | 0.5 | | sar ch, 0x0
| 2 | | 1.0 | | | | | 1.0 | | mul r8
Total Num Of Uops: 14
⇨ One μop that can only use ports {'0', '6'}