Mysql的my.cnf最佳优化配置
DirectAdmin 官方的是最好的：http://help.directadmin.com/item.php?id=44
我个人测试结果 这样的配置 根据自己的内存
cpu 修改一下 跑起来状态最好
skip-locking
skip-innodb
query_cache_limit=1M
query_cache_size=32M
query_cache_type=1
max_connections=500
interactive_timeout=100
wait_timeout=100
connect_timeout=10
thread_cache_size=128
key_buffer=16M
join_buffer=1M
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=2M
read_buffer_size=2M
max_connect_errors=10
# Try number of CPU's*2 for thread_concurrency
thread_concurrency=2
myisam_sort_buffer_size=64M
log-bin
server-id=1
err-log=/var/log/mysqld.log
open_files_limit=8192
quick
max_allowed_packet=16M
no-auto-rehash
#safe-updates
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M
interactive-timeout
第二个就是国外的了
也一样需要根据自己的服务器硬件 网站程序负载 流量 等信息 修改一下
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-locking
#skip-networking
safe-show-database
query_cache_limit=1M
query_cache_size=64M ## 32MB for every 1GB of RAM
query_cache_type=1
max_user_connections=200
max_connections=500
interactive_timeout=10
wait_timeout=20
connect_timeout=20
thread_cache_size=128
key_buffer=128M ## 64MB for every 1GB of RAM
join_buffer=1M
max_connect_errors=20
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=2M ## 1MB for every 1GB of RAM
read_buffer_size=2M ## 1MB for every 1GB of RAM
read_rnd_buffer_size=2M## 1MB for every 1GB of RAM
thread_concurrency=2 ## Number of CPUs x 2
myisam_sort_buffer_size=64M
server-id=1
log_slow_queries=/var/log/mysql-slow-queries.log
long_query_time=2
collation-server=latin1_general_ci
old-passwords
user=mysql
basedir=/var/lib
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid
open_files_limit=8192
quick
max_allowed_packet=16M
no-auto-rehash
#safe-updates
key_buffer=32M
sort_buffer=32M
read_buffer=16M
write_buffer=16M
key_buffer=32M
sort_buffer=32M
read_buffer=16M
write_buffer=16M
interactive-timeout
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