• innodb_directories : Defines directories to scan at startup for tablespace data files. Added in MySQL 8.0.4. 

• innodb_doublewrite_batch_size : Number of doublewrite pages to write per batch. Added in MySQL 8.0.20. 

• innodb_doublewrite_dir : Doublewrite buffer file directory. Added in MySQL 8.0.20. 

• innodb_doublewrite_files : Number of doublewrite files. Added in MySQL 8.0.20. 

• innodb_doublewrite_pages : Number of doublewrite pages per thread. Added in MySQL 8.0.20. 

• innodb_extend_and_initialize : Controls how new tablespace pages are allocated on Linux. Added in MySQL 8.0.22. 

• innodb_fsync_threshold : Controls how often InnoDB calls fsync when creating new file. Added in MySQL 8.0.13. 

• innodb_idle_flush_pct : Limits I/0 operations when InnoDB is idle. Added in MySQL 8.0.18. 

• innodb_log_checkpoint_fuzzy_now : Debug option that forces InnoDB to write fuzzy checkpoint. Added in MySQL 8.0.13. 

• innodb_log_spin_cpu_abs_lwm : Minimum amount of CPU usage below which user threads no longer spin while waiting for flushed redo. Added in MySQL 8.0.11. 

• innodb_log_spin_cpu_pct_hwm : Maximum amount of CPU usage above which user threads no longer spin while waiting for flushed redo. Added in MySQL 8.0.11. 

• innodb_log_wait_for_flush_spin_hwm : Maximum average log flush time beyond which user threads no longer spin while waiting for flushed redo. Added in MySQL 8.0.11. 

• innodb_log_writer_threads : Enables dedicated log writer threads for writing and flushing redo logs. Added in MySQL 8.0.22. 

• innodb_parallel_read_threads : Number of threads for parallel index reads. Added in MySQL 8.0.14. 

• innodb_print_ddl_logs : Whether or not to print DDL logs to error log. Added in MySQL 8.0.3. 

• innodb_redo_log_archive_dirs : Labeled redo log archive directories. Added in MySQL 8.0.17. 

• innodb_redo_log_encrypt : Controls encryption of redo log data for encrypted tablespaces. Added in MySQL 8.0.1. 

• innodb_scan_directories : Defines directories to scan for tablespace files during InnoDB recovery. Added in MySQL 8.0.2. 

• innodb_segment_reserve_factor : The percentage of tablespace file segment pages reserved as empty pages. Added in MySQL 8.0.26. 

• innodb_spin_wait_pause_multiplier : Multiplier value used to determine number of PAUSE instructions in spin-wait loops. Added in MySQL 8.0.16. 

• innodb_stats_include_delete_marked : Include delete-marked records when calculating persistent InnoDB statistics. Added in MySQL 8.0.1. 

• innodb_temp_tablespaces_dir : Session temporary tablespaces path. Added in MySQL 8.0.13. 

