14.12.1 InnoDB INFORMATION_SCHEMA Tables about Compression

14.12.1.1 INNODB_CMP and INNODB_CMP_RESET
14.12.1.2 INNODB_CMPMEM and INNODB_CMPMEM_RESET
14.12.1.3 Using the Compression Information Schema Tables

There are two pairs of InnoDB INFORMATION_SCHEMA tables about compression that can provide insight into how well compression is working overall: