ดู my.cnf ให้หน่อยครับเพิ่งทำ High Performance, database InnoDB 97%, Ram Server 24 GB.,Percona MySQL 5.5.30-30.1
################## Star MySQL-Config By lexham #####################
[client]
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set=tis620
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-external-locking
default_storage_engine=InnoDB
skip-federated
#skip-networking
big-tables
character-set-server=tis620
key_buffer = 1024M
max_allowed_packet = 1024M
table_open_cache = 6000
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 2M
myisam_sort_buffer_size = 512M
thread_cache_size = 16
query_cache_type = 2
query_cache_size = 512M
thread_concurrency = 8
low_priority_updates=1
skip-name-resolve
skip-character-set-client-handshake
init_connect = 'SET NAMES tis620'
max_connections = 250
max_connect_errors=10
open_files_limit=50000
lower_case_table_names=1
##ถ้าไม่ใช้ระบบคลัง Inventory เพิ่ม ถ้าใช้เป็น 1
event_scheduler = 0
## Master MySQL
#log-bin=mysql-bin
#server-id=1
#innodb_flush_log_at_trx_commit=1
#sync_binlog=1
## Master MySQL Replication
#server-id=1
#log-bin=/backup/log/mysql/mysql-bin.log
#binlog-do-db=hos
##binlog-do-db=database_name_2
#replicate-wild-do-table= %.%
#expire_logs_days=10
#max_binlog_size=250M
#innodb_flush_log_at_trx_commit=1
#sync_binlog=1
################## InnoDB #######################
innodb_data_home_dir = /var/lib/mysql/
innodb_data_file_path = ibdata1:100M:autoextend
innodb_log_group_home_dir = /var/lib/mysql/
innodb_buffer_pool_size = 16G
innodb_buffer_pool_instances = 8
innodb_additional_mem_pool_size = 24M
##ห้ามแก้ไข innodb_log_file_size = 512M
innodb_log_file_size = 512M
innodb_file_format=Barracuda
innodb_file_per_table
innodb_log_buffer_size = 32M
innodb_log_files_in_group = 3
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 50
innodb_thread_concurrency = 0
innodb_flush_method=O_DIRECT
innodb_checksums=0
innodb_doublewrite=0
innodb_support_xa=0
innodb_max_dirty_pages_pct=90
innodb_open_files = 4600
innodb_locks_unsafe_for_binlog=1
join_buffer_size = 2M
concurrent_insert = 2
max_heap_table_size = 512M
############# Percona XtraDB ############
innodb_io_capacity = 200
innodb_write_io_threads = 16
innodb_read_io_threads = 16
[mysqldump]
max_allowed_packet = 4096M
quick max_allowed_packet = 4096M
allow-keywords
[mysql]
no-auto-rehash
default-character-set=tis620
[isamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[myisamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 50000
################# End MySQL-Config By lexham #################