innodb_flush_log_at_trx_commit參數性能測試是怎樣的

innodb_flush_log_at_trx_commit參數性能測試是怎樣的，相信很多沒有經驗的人對此束手無策，為此本文總結了問題出現的原因和解決方法，通過這篇文章希望你能解決這個問題。

mysql> create table test_load(a int,b char(80)) engine=innodb;
Query OK, 0 rows affected (0.19 sec)

mysql> delimiter //
mysql> create procedure p_load(count int unsigned)
    -> begin
    -> declare s int unsigned default 1;
    -> declare c char(80) default repeat('a',80);
    -> while s <= count do
    -> insert into test_load select null,c;
    -> commit;
    -> set s = s + 1;
    -> end while;
    -> end;
    -> //

mysql> delimiter ;
mysql> call p_load(50000);
Query OK, 0 rows affected (3.02 sec)


mysql> show variables like '%flush_log%';
+--------------------------------+-------+
| Variable_name                  | Value |
+--------------------------------+-------+
| innodb_flush_log_at_timeout    | 1     |
| innodb_flush_log_at_trx_commit | 0     |
+--------------------------------+-------+

mysql> call p_load(500000);
Query OK, 0 rows affected, 3 warnings (28.43 sec)


mysql> select * from test_load limit 5;
+------+----------------------------------------------------------------------------------+
| a    | b                                                                                |
+------+----------------------------------------------------------------------------------+
| NULL | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
| NULL | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
| NULL | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
| NULL | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
| NULL | aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |
+------+----------------------------------------------------------------------------------+
5 rows in set (0.12 sec)

mysql> set global innodb_flush_log_at_trx_commit=1;
Query OK, 0 rows affected (0.00 sec)


mysql> call p_load(500000);
Query OK, 0 rows affected (27.54 sec)


mysql>  show variables like '%flush_log%';
+--------------------------------+-------+
| Variable_name                  | Value |
+--------------------------------+-------+
| innodb_flush_log_at_timeout    | 1     |
| innodb_flush_log_at_trx_commit | 1     |
+--------------------------------+-------+
2 rows in set (0.09 sec)

mysql> truncate table test_load;
Query OK, 0 rows affected (0.23 sec)


mysql> call p_load(500000);
Query OK, 0 rows affected (24.63 sec)

mysql> set global innodb_flush_log_at_trx_commit=2;
Query OK, 0 rows affected (0.30 sec)


mysql> truncate table test_load;
Query OK, 0 rows affected (1.06 sec)


mysql> call p_load(500000);
Query OK, 0 rows affected (27.69 sec)

看完上述內容，你們掌握innodb_flush_log_at_trx_commit參數性能測試是怎樣的的方法了嗎？如果還想學到更多技能或想了解更多相關內容，歡迎關注億速云行業資訊頻道，感謝各位的閱讀！