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MySQL Worklogs are design specifications for changes that may define past work, or be considered for future development.

WL#4966: Change default of table_open_cache from 64 to 400

Affects: Server-5.4 — Status: Complete

Description
High Level Architecture
Low Level Design

Changed default of table_open_cache from 64 to 400.
In MySQL 5.4.0

In MySQL 5.4.0, change the default of table_open_cache from 64 to 400.

This change is made to provide better “out of box” configuration of default 
values for MySQL operation on up to 16-way x86 servers and 64-way CMT servers
with 4GB or more memory.

Default value of an existing variable changed; no
further LLD required.