Release Notes

Change Description

VM live migration allows a VM to be migrated from one physical host to another without interrupting the VM running. To reduce the data volume transmitted during migration, compression technologies (for example, zlib library) are usually used on the source physical host to compress memory pages, and then the memory pages are decompressed on the target physical host, thereby speeding up the VM live migration.

The Kunpeng Accelerator Engine (KAE) is a hardware acceleration solution based on the new Kunpeng 920 processor model. It includes the compression module KAEzip, which can significantly reduce processor consumption and improve processor efficiency. KAEzlib is a standard zlib interface provided by the KAE compression module. It uses the Kunpeng hardware acceleration module to implement the Deflate algorithm and works with the lossless user-mode driver framework. Therefore, KAE can replace the open source zlib library to accelerate VM live migration.

Supported functions:

• The KAE hardware can be used to compress the live migration memory at the source end.
• The KAE hardware can be used to decompress the live migration memory at the target end.

Resolved Issues

None

Known Issues

None