MySQL performance tuning

Binlog was disabled at last week, this improve the I/O efficiency.

Besides, I've done a minor changes for myisam buffer, changed from 64M to 128M at last week.

 

 

query_cache_size=64M

query_cache_limit=2M

join_buffer_size=4M

tmp_table_size=128M

max_heap_table_size=128M

key_buffer_size=90M 

 

OR

 

query_cache_size (> 32M) 
join_buffer_size (> 1.0M, or always use indexes with joins) 
tmp_table_size (> 64M) 
max_heap_table_size (> 64M) 

 

同时，能够改表的引擎，从myisam到innodb