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MDEV-10296 - Multi-instance table cache

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Improve scalability by implementing multi-instance table cache.
This commit is contained in:
Sergey Vojtovich 2016-06-29 16:33:08 +04:00
commit 7e9ac7b8ac
9 changed files with 186 additions and 185 deletions
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5
sql/sys_vars.cc
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@ -3227,6 +3227,11 @@ static Sys_var_ulong Sys_table_cache_size(
BLOCK_SIZE(1), NO_MUTEX_GUARD, NOT_IN_BINLOG, ON_CHECK(0),
ON_UPDATE(fix_table_open_cache));
static Sys_var_ulong Sys_table_cache_instances(
"table_open_cache_instances", "The number of table cache instances",
READ_ONLY GLOBAL_VAR(tc_instances), CMD_LINE(REQUIRED_ARG),
VALID_RANGE(1, 64), DEFAULT(1), BLOCK_SIZE(1));
static Sys_var_ulong Sys_thread_cache_size(
"thread_cache_size",
"How many threads we should keep in a cache for reuse. These are freed after 5 minutes of idle time",