256MB小内存MySQL配置优化

 [client]
 port = 3306
 socket = /var/run/mysqld/mysqld.sock

 [mysqld_safe]
 socket = /var/run/mysqld/mysqld.sock
 nice = 0

 [mysqld]
 user = mysql
 pid-file = /var/run/mysqld/mysqld.pid
 socket = /var/run/mysqld/mysqld.sock
 port = 3306
 basedir = /usr
 datadir = /var/lib/mysql
 tmpdir = /tmp
 language = /usr/share/mysql/english
 skip-external-locking
 bind-address = 127.0.0.1
 default-storage-engine=MYISAM
 skip-innodb
 key_buffer = 16k
 max_allowed_packet = 1M
 thread_stack = 64K
 thread_cache_size = 4
 table_cache = 4
 sort_buffer_size = 32K
 read_buffer_size = 256K
 read_rnd_buffer_size = 256K
 net_buffer_length = 2K
 query_cache_limit = 1M
 query_cache_size = 5M

 [mysqldump]
 quick
 quote-names
 max_allowed_packet = 16M

 [mysql]
 no-auto-rehash
 #safe-updates

 [isamchk]
 key_buffer = 8M
 sort_buffer_size = 8M

 [myisamchk]
 key_buffer = 8M
 sort_buffer_size = 8M

 [mysqlhotcopy]
 interactive-timeout