小编kid*_*bot的帖子

我的 query_cache_size 是不是太大了？

mysql> SHOW VARIABLES LIKE '%query_cache%';
+------------------------------+-----------+
| Variable_name                | Value     |
+------------------------------+-----------+
| have_query_cache             | YES       |
| query_cache_limit            | 4194304   |
| query_cache_min_res_unit     | 4096      |
| query_cache_size             | 201326592 |
| query_cache_type             | ON        |
| query_cache_wlock_invalidate | OFF       |
+------------------------------+-----------+
6 rows in set (0.00 sec)

mysql> SHOW STATUS LIKE '%qcache%';
+-------------------------+-----------+
| Variable_name           | Value     |
+-------------------------+-----------+
| Qcache_free_blocks      | 26643     |
| Qcache_free_memory      | 83199168  |
| Qcache_hits             | 327606097 |
| …