AN 855: PCI Express* High Performance Reference Design for Intel® Cyclone® 10 GX
                    
                        ID
                        683504
                    
                
                
                    Date
                    6/08/2018
                
                
                    Public
                
            
                        
                        
                            
                                1.1. Understanding Throughput in PCI Express
                            
                            
                        
                            
                            
                                1.2. Deliverables Included with the Reference Design
                            
                        
                            
                                1.3. Reference Design Functional Description
                            
                            
                        
                            
                            
                                1.4. Hardware Requirements
                            
                        
                            
                            
                                1.5. Software Requirements
                            
                        
                            
                            
                                1.6. Software Installation
                            
                        
                            
                                1.7. Hardware Installation
                            
                            
                        
                            
                            
                                1.8. Running the Software Application
                            
                        
                            
                            
                                1.9. Additional Chaining DMA Commands
                            
                        
                            
                            
                                1.10. Using SignalTap II
                            
                        
                            
                            
                                1.11. Performance Benchmarking Results
                            
                        
                            
                            
                                1.12. Document Revision History
                            
                        
                    
                1.11. Performance Benchmarking Results
 The following tables list the performance of x1, and x4 operations with the  Intel® Cyclone® 10 GX FPGA development board for the  Intel® Xeon®  E5-2603 Sandy Bridge EP processor using this reference design. The table shows the average throughput with the following parameters:  
  
 
  - 100 KByte transfer
 - 20 iterations
 - A 256-byte payload
 - Maximum 512-byte read request
 - 256-byte read completion
 
    Note: Refer to the following web page for other available reference designs and application notes for PCI Express. 
   
 
    
   | Configuration | DMA Read (MB/sec) | DMA Write (MB/sec) | Simultaneous DMA Read/Write (MB/sec) | Theoretical maximum throughputs (MB/sec) | |
|---|---|---|---|---|---|
| DMA Read (MB/sec) | DMA Write (MB/sec) | ||||
| Gen2 X4 | 1706 | 1766 | 1652/1446 | 1855 | 1855 | 
| Gen1 X1 | 223 | 223 | 214/189 | 231 | 231 |