diff options
Diffstat (limited to 'sql/sys_vars.cc')
| -rw-r--r-- | sql/sys_vars.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sql/sys_vars.cc b/sql/sys_vars.cc index befea02b5ba..24e64ed5756 100644 --- a/sql/sys_vars.cc +++ b/sql/sys_vars.cc @@ -1060,6 +1060,17 @@ static Sys_var_keycache Sys_key_cache_age_threshold( BLOCK_SIZE(100), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0), ON_UPDATE(change_keycache_param)); +static Sys_var_keycache Sys_key_cache_file_hash_size( + "key_cache_file_hash_size", + "Number of hash buckets for open and changed files. If you have a lot of MyISAM " + "files open you should increase this for faster flush of changes. A good " + "value is probably 1/10 of number of possible open MyISAM files.", + KEYCACHE_VAR(changed_blocks_hash_size), + CMD_LINE(REQUIRED_ARG, OPT_KEY_CACHE_CHANGED_BLOCKS_HASH_SIZE), + VALID_RANGE(128, 16384), DEFAULT(512), + BLOCK_SIZE(1), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0), + ON_UPDATE(resize_keycache)); + static Sys_var_mybool Sys_large_files_support( "large_files_support", "Whether mysqld was compiled with options for large file support", |