dm-writeboost-dkms 2.2.7-1ubuntu1 (ppc64el binary) in ubuntu bionic

 dm-writeboost is an OS-level IO controller that builds logs from in-coming
 writes (data and metadata) and then writes the logs sequentially similar
 to log-structured filesystem. As a further extension, dm-writeboost
 supports read-caching which also writes data sequentially.
 .
 This package provides DKMS kernel module for Linux Kernel 3.10+.