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MySQL 9.3 Reference Manual / ... / The InnoDB Storage Engine / InnoDB INFORMATION_SCHEMA Tables / InnoDB INFORMATION_SCHEMA Tables about Compression
There are two pairs ofInnoDBINFORMATION_SCHEMA tables about compression that can provide insight into how well compression is working overall:
INNODB_CMPandINNODB_CMP_RESETprovide information about the number of compression operations and the amount of time spent performing compression.INNODB_CMPMEMandINNODB_CMPMEM_RESETprovide information about the way memory is allocated for compression.
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