CMPXCHG_LOCK (M64, R64) - Throughput and Uops (IACA 2.3)
With a non-indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 6.67 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 | 2.0 0.0 | 1.5 | 0.6 0.5 | 0.7 0.5 | 1.0 | 1.5 | 2.0 | 0.6 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10^ | 2.0 | 1.5 | 0.6 0.5 | 0.7 0.5 | 1.0 | 1.5 | 2.0 | 0.6 | CP | lock cmpxchg qword ptr [r14], r8
Total Num Of Uops: 10
With additional dependency-breaking instructions
Throughput Analysis Report
--------------------------
Block Throughput: 2.24 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 2.0 0.0 | 1.5 | 0.6 0.5 | 0.8 0.5 | 1.0 | 1.5 | 2.0 | 0.6 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10^ | 2.0 | 1.5 | 0.6 0.5 | 0.8 0.5 | 1.0 | 1.5 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14], r8
| 1* | | | | | | | | | | xor rax, rax
Total Num Of Uops: 11
With 16 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 109.62 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 | 32.0 0.0 | 24.0 | 10.7 8.0 | 10.6 8.0 | 16.0 | 24.0 | 32.0 | 10.6 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x8], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.7 | | lock cmpxchg qword ptr [r14+0x10], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x18], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x20], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.7 | | lock cmpxchg qword ptr [r14+0x28], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x30], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x38], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.7 | | lock cmpxchg qword ptr [r14+0x40], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x48], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x50], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.7 | | lock cmpxchg qword ptr [r14+0x58], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x60], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x68], r8
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 0.3 | 1.0 | 1.0 | 2.0 | 0.7 | | lock cmpxchg qword ptr [r14+0x70], r8
| 10^ | 2.0 | 1.0 | 0.3 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 0.6 | | lock cmpxchg qword ptr [r14+0x78], r8
Total Num Of Uops: 160
With additional dependency-breaking instructions
Throughput Analysis Report
--------------------------
Block Throughput: 36.00 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 32.0 0.0 | 24.0 | 10.0 8.0 | 12.0 8.0 | 16.0 | 24.0 | 32.0 | 10.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10^ | 2.0 | 2.0 | 1.0 1.0 | | 1.0 | 1.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x8], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | | 1.0 | 1.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x10], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x18], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x20], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x28], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x30], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x38], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | | 1.0 | 1.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x40], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x48], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | | 1.0 | 1.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x50], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x58], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x60], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x68], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+0x70], r8
| 1* | | | | | | | | | | xor rax, rax
| 10^ | 2.0 | 1.0 | | 1.0 1.0 | 1.0 | 2.0 | 2.0 | 1.0 | | lock cmpxchg qword ptr [r14+0x78], r8
| 1* | | | | | | | | | | xor rax, rax
Total Num Of Uops: 176
With an indexed addressing mode
With 1 independent instruction
Throughput Analysis Report
--------------------------
Block Throughput: 6.67 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 | 2.0 0.0 | 1.5 | 1.0 0.5 | 1.0 0.5 | 1.0 | 1.5 | 2.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10 | 2.0 | 1.5 | 1.0 0.5 | 1.0 0.5 | 1.0 | 1.5 | 2.0 | | CP | lock cmpxchg qword ptr [r14+r13*1], r8
Total Num Of Uops: 10
With additional dependency-breaking instructions
Throughput Analysis Report
--------------------------
Block Throughput: 2.71 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 2.0 0.0 | 1.5 | 1.0 0.5 | 1.0 0.5 | 1.0 | 1.5 | 2.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10 | 2.0 | 1.5 | 1.0 0.5 | 1.0 0.5 | 1.0 | 1.5 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1], r8
| 1* | | | | | | | | | | xor rax, rax
Total Num Of Uops: 11
With 16 independent instructions
Throughput Analysis Report
--------------------------
Block Throughput: 109.62 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 | 32.0 0.0 | 24.0 | 16.0 8.0 | 16.0 8.0 | 16.0 | 24.0 | 32.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x8], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x10], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x18], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x20], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x28], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x30], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x38], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x40], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x48], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x50], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x58], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x60], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x68], r8
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x70], r8
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x78], r8
Total Num Of Uops: 160
With additional dependency-breaking instructions
Throughput Analysis Report
--------------------------
Block Throughput: 44.00 Cycles Throughput Bottleneck: FrontEnd
Port Binding In Cycles Per Iteration:
---------------------------------------------------------------------------------------
| Port | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 |
---------------------------------------------------------------------------------------
| Cycles | 32.0 0.0 | 24.0 | 16.0 8.0 | 16.0 8.0 | 16.0 | 24.0 | 32.0 | 0.0 |
---------------------------------------------------------------------------------------
| Num Of | Ports pressure in cycles | |
| Uops | 0 - DV | 1 | 2 - D | 3 - D | 4 | 5 | 6 | 7 | |
---------------------------------------------------------------------------------
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x8], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x10], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x18], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x20], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x28], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x30], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x38], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x40], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x48], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x50], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x58], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x60], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x68], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 2.0 | 1.0 1.0 | 1.0 | 1.0 | 1.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x70], r8
| 1* | | | | | | | | | | xor rax, rax
| 10 | 2.0 | 1.0 | 1.0 | 1.0 1.0 | 1.0 | 2.0 | 2.0 | | | lock cmpxchg qword ptr [r14+r13*1+0x78], r8
| 1* | | | | | | | | | | xor rax, rax
Total Num Of Uops: 176