MUL (R32) - 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 | 1.0 | 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 | | | | | | | imul r9w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul r11w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul r12w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul bx, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul cx, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul r9w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul r11w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul r12w, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul bx, r10w, 0x0
| 1 | | 1.0 | | | | | | | imul cx, r10w, 0x0
| 2 | | 1.0 | | | | 1.0 | | | 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: 10.95 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 | 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 | | | insertps xmm0, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm2, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm3, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm4, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm5, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm6, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm7, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm8, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm9, xmm1, 0x2
| 1 | | | | | | 1.0 | | | insertps xmm10, xmm1, 0x2
| 2 | | 1.0 | | | | 1.0 | | | mul r8d
Total Num Of Uops: 12
⇨ One μop that can only use port '5'