Clonezilla

The Free and Open Source Software for Disk Imaging and Cloning
  1. Package zstd v1.5.2 has bad performance when running with option "--rsyncable". Hence the saving performance using -z9 or -zp9 was affected. For more info, please check: https://github.com/facebook/zstd/issues/3150

    Clonezilla live >= 3.0.1-5 and 20220606-* avoid this issue by removing "--rsyncable" option.