Crystal Beach DMA(CBDMA)其实就是Intel® QuickData Technology,说白了就是offload memory copy to DMA engine,DSA代替了该技术。

FAST ‘23 paper Revitalizing the Forgotten On-Chip DMA to Expedite Data Movement in NVM-based Storage Systems也是使用了CBDMA来offload memory copy。


参考资料:

  1. NFV加速利器,CPU中的CBDMA引擎
  2. Accelerating Para-Virtual I/O with CBDMA
  3. Asynchronous CBDMA Enqueue Framework for vHost-User
  4. Using Intel IOAT DMA
  5. Intel® I/O Acceleration Technology
  6. Revitalizing the Forgotten On-Chip DMA to Expedite Data Movement in NVM-based Storage Systems