13.7.14.3. Parameters with New Defaults

For better out-of-the-box performance, the following InnoDB configuration parameters have new default values since MySQL 5.1:

Table 13.11. InnoDB Parameters with New Defaults

NameOld DefaultNew Default
innodb_additional_mem_pool_size1MB8MB
innodb_buffer_pool_size8MB128MB
innodb_change_bufferinginsertsall
innodb_file_format_checkON1
innodb_log_buffer_size1MB8MB
innodb_max_dirty_pages_pct9075
innodb_sync_spin_loops2030
innodb_thread_concurrency80
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