46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
set autocommit=1;
|
|
create database db_1;
|
|
create table db_1.t1(
|
|
id int primary key auto_increment,
|
|
col1 varchar(100),
|
|
col2 int
|
|
)engine= innodb;
|
|
select count(*) from db_1.t1 as of gcn 2048 where id > 0;
|
|
count(*)
|
|
10
|
|
select count(*) from db_1.t1 as of gcn 2048 where id > 0;
|
|
count(*)
|
|
10
|
|
show global status like '%tcn_cache%';
|
|
Variable_name Value
|
|
Lizard_block_tcn_cache_hit 0
|
|
Lizard_block_tcn_cache_miss 0
|
|
Lizard_block_tcn_cache_evict 0
|
|
Lizard_session_tcn_cache_hit 10
|
|
Lizard_session_tcn_cache_miss 10
|
|
Lizard_session_tcn_cache_evict 10
|
|
Lizard_global_tcn_cache_hit 0
|
|
Lizard_global_tcn_cache_miss 0
|
|
Lizard_global_tcn_cache_evict 0
|
|
set global innodb_tcn_cache_level = block;
|
|
select count(*) from db_1.t1 as of gcn 2048 where id > 0;
|
|
count(*)
|
|
10
|
|
select count(*) from db_1.t1 as of gcn 2048 where id > 0;
|
|
count(*)
|
|
10
|
|
show global status like '%tcn_cache%';
|
|
Variable_name Value
|
|
Lizard_block_tcn_cache_hit 10
|
|
Lizard_block_tcn_cache_miss 10
|
|
Lizard_block_tcn_cache_evict 10
|
|
Lizard_session_tcn_cache_hit 10
|
|
Lizard_session_tcn_cache_miss 10
|
|
Lizard_session_tcn_cache_evict 10
|
|
Lizard_global_tcn_cache_hit 0
|
|
Lizard_global_tcn_cache_miss 0
|
|
Lizard_global_tcn_cache_evict 0
|
|
set global innodb_tcn_cache_level=session;
|
|
drop table db_1.t1;
|
|
drop database db_1;
|