xz26
Intel Core i7-8700T testing with a HP 83EA (Q12 Ver. 02.06.03 BIOS) and Intel UHD 630 3GB on Clear Linux OS 30260 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1907094-SK-XZ263285462.
XZ Compression
Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9
Phoronix Test Suite v10.8.4