Bonjour,

J'ai une base mysql avec certaines tables qui sont très grosse (entre 1,5 et 5 Go).
J'ai bien mis des index partout et optimisé mes requetes php.
Mysql est seul sur un serveur Gentoo (2 Go de RAM et Proc Intel Pentium 4 HyperThreading 3.00 GHz).

Le pb est que mon load average est super elevé (des pointes à 10) et il semble que mysql en soit la cause.

La version de mysql est 5.0.40 et voici mon my.cnf :

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# The following options will be passed to all MySQL clients
[client]
#password                                       = your_password
port                                            = 3306
socket                                          = /var/run/mysqld/mysqld.sock
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[php-cgi]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysql]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysqladmin]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysqlcheck]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysqldump]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysqlimport]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[mysqlshow]
character-sets-dir=/usr/share/mysql/charsets
default-character-set=latin1
 
[myisamchk]
character-sets-dir=/usr/share/mysql/charsets
 
[myisampack]
character-sets-dir=/usr/share/mysql/charsets
 
# use [safe_mysqld] with mysql-3
[mysqld_safe]
err-log                                         = /var/log/mysql/mysql.err
 
# add a section [mysqld-4.1] or [mysqld-5.0] for specific configurations
[mysqld]
character-set-server            = latin1
default-character-set           = latin1
user                                            = mysql
port                                            = 3306
socket                                          = /var/run/mysqld/mysqld.sock
pid-file                                        = /var/run/mysqld/mysqld.pid
log-error                                       = /var/log/mysql/mysqld.err
basedir                                         = /usr
datadir                                         = /var/lib/mysql
skip-locking
key_buffer                                      = 16M
max_allowed_packet                      = 1M
table_cache                             = 64
sort_buffer_size                        = 512K
net_buffer_length                       = 8K
read_buffer_size                        = 256K
read_rnd_buffer_size            = 512K
myisam_sort_buffer_size         = 8M
language                                        = /usr/share/mysql/english
 
# point the following paths to different dedicated disks
tmpdir                                          = /tmp/
 
skip-innodb
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
 
innodb_data_file_path = ibdata1:10M:autoextend:max:128M
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
set-variable = innodb_log_files_in_group=2
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
 
[mysqldump]
quick
max_allowed_packet                      = 16M
 
[mysql]
 
 
[isamchk]
key_buffer                                      = 20M
sort_buffer_size                        = 20M
read_buffer                             = 2M
write_buffer                            = 2M
 
[myisamchk]
key_buffer                                      = 20M
sort_buffer_size                        = 20M
read_buffer                             = 2M
write_buffer                            = 2M
 
[mysqlhotcopy]
interactive-timeout
Auriez vous des idées d'optimisation ?

D'avance Merci