query_cache_size, tmp_table_size 这两个选项一定要设置!
# The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /home/work/mysql/tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port = 3306 bind-address = 127.0.0.1 socket = /home/work/mysql/tmp/mysql.sock #skip-locking max_allowed_packet = 1M table_open_cache = 16 sort_buffer_size = 8M read_buffer_size = 512K read_rnd_buffer_size = 256K net_buffer_length = 8K thread_stack = 128K # Size of the Key Buffer, used to cache index blocks for MyISAM tables. # Do not set it larger than 30% of your available memory, as some memory # is also required by the OS to cache rows. Even if you're not using # MyISAM tables, you should still set it to 8-64M as it will also be # used for internal temporary disk tables. key_buffer_size = 8M # If the temporary file used for fast index creation would be bigger # than using the key cache by the amount specified here, then prefer the # key cache method. This is mainly used to force long character keys in # large tables to use the slower key cache method to create the index. myisam_sort_buffer_size = 8M # Query cache is used to cache SELECT results and later return them # without actual executing the same query once again. Having the query # cache enabled may result in significant speed improvements, if your # have a lot of identical queries and rarely changing tables. See the # "Qcache_lowmem_prunes" status variable to check if the current value # is high enough for your load. # Note: In case your tables change very often or if your queries are # textually different every time, the query cache may result in a # slowdown instead of a performance improvement. query_cache_size=16M # Maximum size for internal (in-memory) temporary tables. If a table # grows larger than this value, it is automatically converted to disk # based table This limitation is for a single table. There can be many # of them. tmp_table_size=16M # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (using the "enable-named-pipe" option) will render mysqld useless! # skip-networking server-id = 1 # Uncomment the following if you want to log updates #log-bin=mysql-bin # binary logging format - mixed recommended #binlog_format=mixed # Uncomment the following if you are using InnoDB tables #default_storage_engine=InnoDB innodb_data_home_dir = /home/work/mysql/var/ innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /home/work/mysql/var/ # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high innodb_buffer_pool_size = 32M innodb_additional_mem_pool_size = 4M # Set .._log_file_size to 25 % of buffer pool size innodb_log_file_size = 10M innodb_log_buffer_size = 16M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M [mysqlhotcopy] interactive-timeout
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