VPGATHERDD (YMM, VSIB_YMM, YMM) - Throughput and Uops (IACA 2.2)
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 22.00 Cycles Throughput Bottleneck: Dependency chains (possibly between iterations)
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.3 0.0 | 0.3 | 4.0 4.0 | 4.0 4.0 | 0.0 | 4.0 | 0.3 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 13 | 0.3 | 0.3 | 4.0 4.0 | 4.0 4.0 | | 4.0 | 0.3 | | CP | vpgatherdd ymm0, ymmword ptr [r14+ymm14*1], ymm1
Total Num Of Uops: 13
With 6 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 42.00 Cycles Throughput Bottleneck: FrontEnd (bubbles)
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 2.0 0.0 | 2.0 | 24.0 24.0 | 24.0 24.0 | 0.0 | 24.0 | 2.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 13 | 1.0 | | 4.0 4.0 | 4.0 4.0 | | 4.0 | | | | vpgatherdd ymm0, ymmword ptr [r14+ymm14*1], ymm1
| 13 | | 1.0 | 4.0 4.0 | 4.0 4.0 | | 4.0 | | | | vpgatherdd ymm2, ymmword ptr [r14+ymm14*1+0x4], ymm3
| 13 | | | 4.0 4.0 | 4.0 4.0 | | 4.0 | 1.0 | | | vpgatherdd ymm4, ymmword ptr [r14+ymm14*1+0x8], ymm5
| 13 | 1.0 | | 4.0 4.0 | 4.0 4.0 | | 4.0 | | | | vpgatherdd ymm6, ymmword ptr [r14+ymm14*1+0xc], ymm7
| 13 | | 1.0 | 4.0 4.0 | 4.0 4.0 | | 4.0 | | | | vpgatherdd ymm8, ymmword ptr [r14+ymm14*1+0x10], ymm9
| 13 | | | 4.0 4.0 | 4.0 4.0 | | 4.0 | 1.0 | | | vpgatherdd ymm10, ymmword ptr [r14+ymm14*1+0x14], ymm11
Total Num Of Uops: 78
With the -no_interiteration flag
Throughput Analysis Report
--------------------------
Block Throughput: 11.52 Cycles Throughput Bottleneck: FrontEnd (bubbles)
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 0.3 0.0 | 0.3 | 4.0 4.0 | 4.0 4.0 | 0.0 | 4.0 | 0.3 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 13 | 0.3 | 0.3 | 4.0 4.0 | 4.0 4.0 | | 4.0 | 0.3 | | | vpgatherdd ymm0, ymmword ptr [r14+ymm14*1], ymm1
Total Num Of Uops: 13