The compressors that fell just
short of a given speed
category appear at the bottom of the corresponding table. Submissions that failed to fully comply with the rules (in particular, the rule that every compressor must correctly decode the compressed files for all four tests) are also at the bottom.
Most compressors in the table underwent testing on a machine running Windows 10 64-bit (except agiannis_image, agiannis_text, archbox, BWIC, guess, k5, Orz, pgcm, pglz, sgcm, TBCM which underwent testing on a machine running Ubuntu 18.04), with the machine configuration described in Test Hardware