????1.?????????
????[mysqld]
key_buffer = 512M
max_allowed_packet = 64M
table_cache = 512
sort_buffer_size = 4M
read_buffer_size = 4M
read_rnd_buffer_size = 2M
myisam_sort_buffer_size = 64M
tmp_table_size = 128M
query_cache_size = 96M
query_cache_type = 1
thread_cache_size = 8
max_connections = 400
wait_timeout = 300
????2.innodb
#innodb_data_home_dir = C:mysqldata/
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = C:mysqldata/
#innodb_log_arch_dir = C:mysqldata/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50
????example1??
innodb_additional_mem_pool_size = 16M
innodb_log_buffer_size = 8M
innodb_log_file_size = 512M
innodb_log_files_in_group = 2
innodb_buffer_pool_size = 3G
innodb_data_file_path = ibdata1:3G;ibdata2:1G:autoextend
innodb_autoextend_increment=512