I have a test process, which runs in the "old server" in 35 seconds, the new
server runs the same process in 110.
There is a change of version from mysql 4.1.22 to 5.1.22.
We were stuck at 5.1.22 because higher version give us another issules like
encoding, case sensitivity...
I really belive that the issue is regarding the mysql server....
there is extensive information about my setup...
I have more processors, more memory, more disk speed, but lower results...
T_T, because the wtf is long forgotten.
hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 13392 MB in 2.00 seconds = 6699.90 MB/sec
Timing buffered disk reads: 174 MB in 3.02 seconds = 57.64 MB/sec
free
total used free shared buffers cached
Mem: 16631296 16065356 565940 0 83148 13415520
-/+ buffers/cache: 2566688 14064608
Swap: 16779852 128 16779724
uname -r
2.6.16.21-0.8-bigsmp
Your MySQL connection id is 21 to server version: 4.1.22-standard-log
more /proc/cpuinfo | grep -e "processor\|name"
processor : 0
model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHz
processor : 1
model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHz
processor : 2
model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHz
processor : 3
model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHz
grep -v ^# /etc/my.cnf | sed '/^$/d'
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
innodb_file_per_table
port = 3306
socket = /tmp/mysql.sock
back_log = 50
max_connections = 100
max_connect_errors = 10
table_cache = 2048
max_allowed_packet = 256M
binlog_cache_size = 16M
max_heap_table_size = 64M
sort_buffer_size = 16M
join_buffer_size = 32M
thread_cache = 8
thread_concurrency = 8
query_cache_size = 256M
query_cache_limit = 32M
ft_min_word_len = 4
memlock
default_table_type = INNODB
thread_stack = 192K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 256M
log_slow_queries
long_query_time = 2
log_long_format
tmpdir = /tmp
key_buffer_size = 128M
read_buffer_size = 64M
read_rnd_buffer_size = 128M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_max_extra_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
skip-bdb
innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 2G
innodb_data_file_path = ibdata1:10M:autoextend
innodb_file_io_threads = 4
innodb_thread_concurrency = 32
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 8M
innodb_log_file_size = 256M
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
[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 = 10240
New Server, which happnes to be 2x SLOWER!
hdparm -tT /dev/sda ; free ; uname -r ; cat /proc/cpuinfo | grep -e
"processor\|name"
/dev/sda:
Timing cached reads: 5858 MB in 2.00 seconds = 2932.17 MB/sec
Timing buffered disk reads: 1304 MB in 3.00 seconds = 434.06 MB/sec
total used free shared buffers cached
Mem: 33008624 2097924 30910700 0 21308 76024
-/+ buffers/cache: 2000592 31008032
Swap: 8388604 0 8388604
uname -r
2.6.34.7-0.7-desktop
processor : 0
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 1
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 2
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 3
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 4
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 5
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 6
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 7
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 8
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 9
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 10
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
processor : 11
model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
Server version: 5.1.52-log Source distribution
grep -v ^# /etc/my.cnf | sed '/^$/d'
[client]
port = 3306
socket = /tmp/mysqld.sock
[safe_mysqld]
err_log = /mysql/logs/mysql.err
[mysqld]
skip-external-locking
server_id = 9000
user = mysql
port = 3306
socket = /tmp/mysqld.sock
max_connections = 2048
back_log = 128
max_connect_errors = 1000
connect_timeout = 2
wait_timeout = 60
max_allowed_packet = 16M
net_buffer_length = 8K
datadir = /mysql/data
tmpdir = /mysql/tmp
log-error = /mysql/logs/mysqld.err
pid-file = /mysql/tmp/mysqld.pid
slow_query_log_file = /mysql/logs/slow-queries.log
log_output = FILE
# 5.1 only
long_query_time = 5
log-short-format
log_bin = /mysql/binary-logs/produccion-bin
relay_log = /mysql/binary-logs/produccion-relay-bin
binlog_format = row #
5.1 only
binlog_cache_size = 10M
skip_slave_start
table_cache = 4096
join_buffer_size = 256M
tmp_table_size = 2G
max_heap_table_size = 2G
sort_buffer_size = 1G
thread_cache_size = 2048
thread_concurrency = 8
thread_stack = 192K
query_cache_size = 2G
query_cache_type = 1
query_cache_limit = 256M
default_storage_engine = InnoDB
transaction_isolation = REPEATABLE-READ
key_buffer_size = 512M
read_buffer_size = 16M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 246M
bulk_insert_buffer_size = 64M
myisam_max_sort_file_size = 6G
myisam_repair_threads = 2
innodb_data_home_dir = /mysql/innodb
innodb_data_file_path = ibdata1:10M:autoextend
innodb_file_per_table
innodb_buffer_pool_size = 12G # 16GB RAM
innodb_additional_mem_pool_size = 128M
innodb_log_group_home_dir = /mysql/innodb-logs
innodb_log_files_in_group = 4
innodb_log_file_size = 128M # 8GB RAM
innodb_log_buffer_size = 16M
innodb_max_dirty_pages_pct = 80
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
innodb_flush_method = O_DIRECT
innodb_thread_concurrency = 16
innodb_autoinc_lock_mode = 1
innodb_locks_unsafe_for_binlog # 5.1 only
innodb_fast_shutdown = 1
innodb_max_purge_lag = 0
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
[myisamchk]
key_buffer = 256M
sort_buffer = 256M
read_buffer = 64M
write_buffer = 64M
[mysqlhotcopy]
interactive_timeout
