14.17.1 InnoDB INFORMATION_SCHEMA Tables about Compression

14.17.1.1 INNODB_CMP and INNODB_CMP_RESET
14.17.1.2 INNODB_CMPMEM and INNODB_CMPMEM_RESET
14.17.1.3 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. The first pair of tables contains information about the number of compression operations and the amount of time spent performing compression. The other pair of tables contains information on the way memory is allocated for compression.