We are using server this theses parameters: 8 cores CPU 18GB RAM MySQL version 5.5
We would like to get the best performance. The DB is InnoDB type. I would like to know your experience and maybe you help me for performance.
[client]
#password = [your_password]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld]
port = 3306
socket = /var/run/mysqld/mysqld.sock
back_log = 100
max_connections = 151
max_connect_errors = 10
table_open_cache = 2048
max_allowed_packet = 16M
binlog_cache_size = 1M
max_heap_table_size = 128M
read_buffer_size = 2M
read_rnd_buffer_size = 16M
sort_buffer_size = 16M
join_buffer_size = 16M
thread_cache_size = 8
thread_concurrency = 8
query_cache_size = 256M
query_cache_limit = 32M
ft_min_word_len = 4
memlock
innodb = ON
thread_stack = 192K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 128M
log-bin=/var/lib/mysql/log/mysql-bin.log
binlog-do-db=db_X1
binlog-do-db=db_X2
binlog-do-db=db_X3
binlog-do-db=db_X4
binlog-do-db=db_X5
binlog-do-db=db_X6
slow_query_log = 1
slow_query_log_file = /var/log/mysql/slow_query.log
long_query_time = 10
#*** MyISAM Specific options
key_buffer_size = 64M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
# *** INNODB Specific options ***
innodb_additional_mem_pool_size = 512M
innodb_buffer_pool_size = 12G
innodb_data_file_path = ibdata1:20G:autoextend
innodb_write_io_threads = 32
innodb_read_io_threads = 32
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 8M
innodb_log_file_size = 1024M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[myisamchk]
key_buffer_size = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 8192
Is it correct settings for best performance?
