September 13-16, 2022
Dublin, Ireland + Virtual
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Friday, September 16 • 16:50 - 17:30
Accelerate the Image Distribution for DADI Using Intel DSA - Haibin Huang, Intel & Chen Bo, Alibaba

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Container images are formed of layer blobs, and the checksum is usually added to the compressed blob file to provide integrity. DADI is a solution for container acceleration, and it has presented a new remote image format called overlaybd, which supports fetching image data on-demand. Because overlaybd is based on a merged view of remote layers and exported as a local block device, the container startup process requires real-time network IOs and CRC validation has to be taken inflight. The average CRC cost of overlaybd is approximately 10% of its total calculations, non-significant, but unable to neglect. By using Intel DSA (Data Streaming Accelerator) solution to accelerate DADI CRC in the SPR platform, we have achieved a 9% overall performance increase, compared with the results from the Alibaba side. Besides, this solution has leveraged other SPR related features in Alibaba Cloud Services. DSA performs CRC operations when copying data from device to memory, and data with incorrect CRC would not even touch memory. So the memory overhead will be reduced and some CPU tasks are offloaded as well.


Haibin Huang

Cloud Software Engineer, Intel
Haibin Huang is an engineer of Open Source Technology Center (OTC), Intel. Haibin joined Intel in 2016. He has been working on Huawei after he graduated from Zhejiang University and got his Master's degree in Computer Science. He always works on low-level Virtualization Technology... Read More →

Chen Bo

Software Engineer, Alibaba
Now focused on the storage technology about container image (DADI project, https://github.com/containerd/accelerated-container-image), cache (https://github.com/Open-CAS/ocf) and Cloud Native

Friday September 16, 2022 16:50 - 17:30 IST
Wicklow Hall 2A (Level 2)
  ContainerCon, Container Images and Registries