The following links provide documentation on the patches included in the Percona XtraDB.
| Name | Description | Introduced in |
|---|---|---|
| innodb_buffer_pool_pages | Add information_schema tables to print contents of buffer pool | 1.0.2-1 |
| innodb_admin_command_base | Add command interface to XtraDB through information_schema for the future implementation | |
| innodb_dict_size_limit | Limits the size of InnoDB's data dictionary cache | |
| innodb_expand_import | Can import arbitrary .ibd file exported by XtraBackup | |
| innodb_expand_undo_slots | Support to expand undo slots over 1024 | 1.0.2-2 |
| innodb_extend_slow | Using with slow_extended.patch for MySQL-5.1 (XtraDB part of the microslow_innodb.patch) | |
| innodb_extra_rseg | Support multiple rollback segments | 1.0.2-3 |
| innodb_io | Support some enhancements about IO | 1.0.2-1 |
| innodb_lru_dump_restore | Dump and restore command for content of buffer pool | Not yet |
| innodb_opt_lru_count | Change counting blocks from LRU list optimistic without mutex | 1.0.2-1 |
| innodb_overwrite_relay_log_info | Support aligning relay-log.info at recovery slave server | 1.0.3-4 |
| innodb_purge_thread | add purge devoted threads | |
| innodb_recovery_patches | Bugfixes and adjustments about recovery process | |
| innodb_relax_table_creation | Make the size criteria for create table relaxed same as builtin InnoDB | |
| innodb_show_enhancements | information_schema table to print these patches | 1.0.2-1 |
| innodb_show_lock_name | Show mutex/lock name instead of crated file/line | |
| innodb_show_status | Some additional features for SHOW INNODB STATUS command | 1.0.2-1 |
| innodb_split_buf_pool_mutex | Split one mutex buf_pool_mutex into several mutexes and rw_locks | 1.0.2-1 |
| innodb_stats | Additional features about InnoDB statistics/optimizer | |
| innodb_thread_concurrency_timer_based | use InnoDB timer based concurrency throttling (backport from MySQL 5.4.0) |
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