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View Full Version : Optimization for two new servers


Black_Widow
Sun 17th Dec '06, 9:47pm
Hello eva,
following this thread I've purchased two new server form my vbulletin community and it'd be good to optimize them for maximum performance.

I've already installed APC on Apache webserver.
Thank you George.


1
Two dedicated server

2
## First server Webserver ##
Dual Intel Xeon-Woodcrest 5140-DualCore [2.33GHz]
2 X Generic 1GB 533ECC FB-DIMM DDR2 [1GB]
LSI LOGIC SAS3442X SCSI Controller
1 X Fujitsu MAX3073 SAS 3073 [73GB]
Uplink speed: 100 (Mbps)
RHE4 (32)
Cpanel

Apache 1.3.37
PHP 4.4.4

## Second server Database/Mysql ##
Dual Intel Xeon-Woodcrest 5140-DualCore [2.33GHz]
6 x Generic 1GB 533ECC FB-DIMM DDR2 [1GB]
Adaptec 4800SAS SA-SCSI RAID-10 Controller
4 X Fujitsu MAX3073 SAS 3073 [73GB]
RHE4 (64)

Mysql 4.1.22-standard

3
I don't know if I've installed innodb table, but vbulletin is the only script on my servers.

4
Mysql was installed via RPM

5
1500 concurrent users

6
[mysqld]
skip-name-resolve
safe-show-database
back_log = 75
skip-innodb
max_connections = 1800
key_buffer = 64M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 2500
thread_cache_size = 1024
wait_timeout = 15
connect_timeout = 10
tmp_table_size = 128M
max_heap_table_size = 64M
max_allowed_packet = 64M
max_connect_errors = 10
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
query_cache_limit = 3M
query_cache_size = 80M
query_cache_type = 1
query_prealloc_size = 163840
query_alloc_block_size = 32768
default-storage-engine = MyISAM

[mysqld_safe]
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M


7
+---------------------------------+------------------------------------------+
| Variable_name | Value |
+---------------------------------+------------------------------------------+
| back_log | 75 |
| basedir | / |
| binlog_cache_size | 32768 |
| bulk_insert_buffer_size | 8388608 |
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
| collation_connection | latin1_swedish_ci |
| collation_database | latin1_swedish_ci |
| collation_server | latin1_swedish_ci |
| concurrent_insert | ON |
| connect_timeout | 10 |
| datadir | /var/lib/mysql/ |
| date_format | %Y-%m-%d |
| datetime_format | %Y-%m-%d %H:%i:%s |
| default_week_format | 0 |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| expire_logs_days | 0 |
| flush | OFF |
| flush_time | 0 |
| ft_boolean_syntax | + -><()~*:""&| |
| ft_max_word_len | 84 |
| ft_min_word_len | 4 |
| ft_query_expansion_limit | 20 |
| ft_stopword_file | (built-in) |
| group_concat_max_len | 1024 |
| have_archive | YES |
| have_bdb | NO |
| have_blackhole_engine | NO |
| have_compress | YES |
| have_crypt | YES |
| have_csv | NO |
| have_example_engine | NO |
| have_geometry | YES |
| have_innodb | DISABLED |
| have_isam | NO |
| have_merge_engine | YES |
| have_ndbcluster | NO |
| have_openssl | NO |
| have_query_cache | YES |
| have_raid | NO |
| have_rtree_keys | YES |
| have_symlink | YES |
| init_connect | |
| init_file | |
| init_slave | |
| innodb_additional_mem_pool_size | 1048576 |
| innodb_autoextend_increment | 8 |
| innodb_buffer_pool_awe_mem_mb | 0 |
| innodb_buffer_pool_size | 8388608 |
| innodb_data_file_path | |
| innodb_data_home_dir | |
| innodb_fast_shutdown | ON |
| innodb_file_io_threads | 4 |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 1 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_arch_dir | |
| innodb_log_archive | OFF |
| innodb_log_buffer_size | 1048576 |
| innodb_log_file_size | 5242880 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | |
| innodb_max_dirty_pages_pct | 90 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_open_files | 300 |
| innodb_table_locks | ON |
| innodb_thread_concurrency | 8 |
| interactive_timeout | 28800 |
| join_buffer_size | 1044480 |
| key_buffer_size | 67108864 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |
| language | /usr/share/mysql/english/ |
| large_files_support | ON |
| lc_time_names | en_US |
| license | GPL |
| local_infile | ON |
| locked_in_memory | OFF |
| log | OFF |
| log_bin | OFF |
| log_error | |
| log_slave_updates | OFF |
| log_slow_queries | OFF |
| log_update | OFF |
| log_warnings | 1 |
| long_query_time | 10 |
| low_priority_updates | OFF |
| lower_case_file_system | OFF |
| lower_case_table_names | 0 |
| max_allowed_packet | 67107840 |
| max_binlog_cache_size | 18446744073709551615 |
| max_binlog_size | 1073741824 |
| max_connect_errors | 10 |
| max_connections | 1800 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 67107840 |
| max_insert_delayed_threads | 20 |
| max_join_size | 18446744073709551615 |
| max_length_for_sort_data | 1024 |
| max_prepared_stmt_count | 16382 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 18446744073709551615 |
| max_sort_length | 1024 |
| max_tmp_tables | 32 |
| max_user_connections | 0 |
| max_write_lock_count | 18446744073709551615 |
| myisam_data_pointer_size | 4 |
| myisam_max_extra_sort_file_size | 2147483648 |
| myisam_max_sort_file_size | 9223372036854775807 |
| myisam_recover_options | OFF |
| myisam_recover_options | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 67108864 |
| myisam_stats_method | nulls_unequal |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old_passwords | OFF |
| open_files_limit | 9000 |
| pid_file | /var/lib/mysql/database.p2pforum.it.pid |
| port | 3306 |
| preload_buffer_size | 32768 |
| prepared_stmt_count | 0 |
| protocol_version | 10 |
| query_alloc_block_size | 32768 |
| query_cache_limit | 3145728 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 83886080 |
| query_cache_type | ON |
| query_cache_wlock_invalidate | OFF |
| query_prealloc_size | 163840 |
| range_alloc_block_size | 2048 |
| read_buffer_size | 1044480 |
| read_only | OFF |
| read_rnd_buffer_size | 520192 |
| relay_log_purge | ON |
| relay_log_space_limit | 0 |
| rpl_recovery_rank | 0 |
| secure_auth | OFF |
| server_id | 0 |
| skip_external_locking | ON |
| skip_networking | OFF |
| skip_show_database | OFF |
| slave_net_timeout | 3600 |
| slave_transaction_retries | 0 |
| slow_launch_time | 2 |
| socket | /var/lib/mysql/mysql.sock |
| sort_buffer_size | 2097144 |
| sql_mode | |
| sql_notes | ON |
| sql_warnings | ON |
| storage_engine | MyISAM |
| sync_binlog | 0 |
| sync_frm | ON |
| sync_replication | 0 |
| sync_replication_slave_id | 0 |
| sync_replication_timeout | 0 |
| system_time_zone | CST |
| table_cache | 2500 |
| table_type | MyISAM |
| thread_cache_size | 1024 |
| thread_stack | 196608 |
| time_format | %H:%i:%s |
| time_zone | SYSTEM |
| tmp_table_size | 134217728 |
| tmpdir | |
| transaction_alloc_block_size | 8192 |
| transaction_prealloc_size | 4096 |
| tx_isolation | REPEATABLE-READ |
| version | 4.1.22-standard |
| version_comment | MySQL Community Edition - Standard (GPL) |
| version_compile_machine | x86_64 |
| version_compile_os | unknown-linux-gnu |
| wait_timeout | 15 |
+---------------------------------+------------------------------------------+
+----------------------------+------------+
| Variable_name | Value |
+----------------------------+------------+
| Aborted_clients | 10 |
| Aborted_connects | 0 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 25024786 |
| Bytes_sent | 3809717127 |
| Com_admin_commands | 0 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 7378 |
| Com_change_master | 0 |
| Com_check | 0 |
| Com_checksum | 0 |
| Com_commit | 0 |
| Com_create_db | 0 |
| Com_create_function | 0 |
| Com_create_index | 0 |
| Com_create_table | 0 |
| Com_dealloc_sql | 0 |
| Com_delete | 116 |
| Com_delete_multi | 0 |
| Com_do | 0 |
| Com_drop_db | 0 |
| Com_drop_function | 0 |
| Com_drop_index | 0 |
| Com_drop_table | 0 |
| Com_drop_user | 0 |
| Com_execute_sql | 0 |
| Com_flush | 0 |
| Com_grant | 0 |
| Com_ha_close | 0 |
| Com_ha_open | 0 |
| Com_ha_read | 0 |
| Com_help | 0 |
| Com_insert | 2836 |
| Com_insert_select | 24 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_load_master_data | 0 |
| Com_load_master_table | 0 |
| Com_lock_tables | 0 |
| Com_optimize | 0 |
| Com_preload_keys | 0 |
| Com_prepare_sql | 0 |
| Com_purge | 0 |
| Com_purge_before_date | 0 |
| Com_rename_table | 0 |
| Com_repair | 0 |
| Com_replace | 377 |
| Com_replace_select | 0 |
| Com_reset | 0 |
| Com_restore_table | 0 |
| Com_revoke | 0 |
| Com_revoke_all | 0 |
| Com_revoke_all | 0 |
| Com_rollback | 0 |
| Com_savepoint | 0 |
| Com_select | 27945 |
| Com_set_option | 0 |
| Com_show_binlog_events | 0 |
| Com_show_binlogs | 0 |
| Com_show_charsets | 0 |
| Com_show_collations | 0 |
| Com_show_column_types | 0 |
| Com_show_create_db | 0 |
| Com_show_create_table | 0 |
| Com_show_databases | 0 |
| Com_show_errors | 0 |
| Com_show_fields | 0 |
| Com_show_grants | 0 |
| Com_show_innodb_status | 0 |
| Com_show_keys | 0 |
| Com_show_logs | 0 |
| Com_show_master_status | 0 |
| Com_show_ndb_status | 0 |
| Com_show_new_master | 0 |
| Com_show_open_tables | 0 |
| Com_show_privileges | 0 |
| Com_show_processlist | 0 |
| Com_show_slave_hosts | 0 |
| Com_show_slave_status | 0 |
| Com_show_status | 1 |
| Com_show_storage_engines | 0 |
| Com_show_tables | 1 |
| Com_show_variables | 3 |
| Com_show_warnings | 0 |
| Com_slave_start | 0 |
| Com_slave_stop | 0 |
| Com_stmt_close | 0 |
| Com_stmt_execute | 0 |
| Com_stmt_prepare | 0 |
| Com_stmt_reset | 0 |
| Com_stmt_send_long_data | 0 |
| Com_truncate | 0 |
| Com_unlock_tables | 0 |
| Com_update | 4102 |
| Com_update_multi | 0 |
| Com_update_multi | 0 |
| Connections | 7381 |
| Created_tmp_disk_tables | 75 |
| Created_tmp_files | 38 |
| Created_tmp_tables | 288 |
| Delayed_errors | 0 |
| Delayed_insert_threads | 0 |
| Delayed_writes | 0 |
| Flush_commands | 1 |
| Handler_commit | 0 |
| Handler_delete | 1413 |
| Handler_discover | 0 |
| Handler_read_first | 977 |
| Handler_read_key | 1199269 |
| Handler_read_next | 3164041 |
| Handler_read_prev | 96710 |
| Handler_read_rnd | 321249 |
| Handler_read_rnd_next | 113377595 |
| Handler_rollback | 0 |
| Handler_update | 49608 |
| Handler_write | 77167 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 21814 |
| Key_blocks_used | 31771 |
| Key_read_requests | 4281004 |
| Key_reads | 31846 |
| Key_write_requests | 11665 |
| Key_writes | 6578 |
| Max_used_connections | 6 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 465 |
| Open_streams | 0 |
| Open_tables | 245 |
| Opened_tables | 251 |
| Qcache_free_blocks | 1195 |
| Qcache_free_memory | 60363936 |
| Qcache_hits | 49667 |
| Qcache_inserts | 27836 |
| Qcache_lowmem_prunes | 0 |
| Qcache_not_cached | 109 |
| Qcache_queries_in_cache | 5717 |
| Qcache_total_blocks | 12980 |
| Questions | 99824 |
| Rpl_status | NULL |
| Select_full_join | 2 |
| Select_full_range_join | 0 |
| Select_range | 4350 |
| Select_range_check | 0 |
| Select_scan | 6881 |
| Slave_open_temp_tables | 0 |
| Slave_retried_transactions | 0 |
| Slave_running | OFF |
| Slow_launch_threads | 0 |
| Slow_queries | 0 |
| Sort_merge_passes | 19 |
| Sort_range | 5854 |
| Sort_rows | 749170 |
| Sort_scan | 2180 |
| Table_locks_immediate | 63779 |
| Table_locks_waited | 24 |
| Threads_cached | 5 |
| Threads_connected | 1 |
| Threads_created | 6 |
| Threads_running | 1 |
| Uptime | 2371 |
+----------------------------+------------+
Uptime: 2389 Threads: 2 Questions: 100664 Slow queries: 0 Opens: 251 Flush tables: 1 Open tables: 245 Queries per seco
nd avg: 42.136
mysqladmin Ver 8.41 Distrib 4.1.22, for unknown-linux-gnu on x86_64
Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version 4.1.22-standard
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /var/lib/mysql/mysql.sock
Uptime: 39 min 49 sec

Threads: 2 Questions: 100664 Slow queries: 0 Opens: 251 Flush tables: 1 Open tables: 245 Queries per second avg: 42.136

8
My vb is the onlt script on this server

9
Average users = 1000
Concurrent = 1500

10
phpinfo (http://www.p2pforum.it/phpinfo.php)

11
Apache 1.3.37

KeepAlive off
MaxKeepAliveRequests 100
KeepAliveTimeout 4
MinSpareServers 10
MaxSpareServers 25
StartServers 15
MaxClients 200
MaxRequestsPerChild 500

12
vbulletin 3.5.4 (i cannot upgrade for the moment)

13
No Big files on servers

14
Webserver
Linux webserv 2.6.9-42.0.3.ELsmp #1 SMP Mon Sep 25 17:28:02 EDT 2006 i686 i686 i386 GNU/Linux
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
pending signals (-i) 1024
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 32758
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited


processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.806
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_cpl est tm2 xtpr
bogomips : 4670.13

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.806
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_cpl est tm2 xtpr
bogomips : 4666.19

processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.806
cache size : 4096 KB
physical id : 3
siblings : 2
core id : 6
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_cpl est tm2 xtpr
bogomips : 4666.30

processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.806
cache size : 4096 KB
physical id : 3
siblings : 2
core id : 7
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_cpl est tm2 xtpr
bogomips : 4666.24



Database
Linux database 2.6.9-42.0.3.ELsmp #1 SMP Mon Sep 25 17:24:31 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux

core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
pending signals (-i) 1024
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 57344
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited


processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.490
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cx16 xtpr
bogomips : 4672.00
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.490
cache size : 4096 KB
physical id : 3
siblings : 2
core id : 6
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cx16 xtpr
bogomips : 4666.22
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.490
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cx16 xtpr
bogomips : 4666.17
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5140 @ 2.33GHz
stepping : 6
cpu MHz : 2333.490
cache size : 4096 KB
physical id : 3
siblings : 2
core id : 7
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cx16 xtpr
bogomips : 4666.22
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

Black_Widow
Wed 20th Dec '06, 9:24am
Here is also mysqlreport output

MySQL 4.1.22-standard uptime 2 12:34:11 Wed Dec 20 07:22:26 2006

__ Key __________________________________________________ _______________
Buffer used 52.33M of 64.00M %Used: 81.76
Current 64.00M %Usage: 100.00
Write ratio 0.599
Read ratio 0.001

__ Questions __________________________________________________ _________
Total 35.09M 160.9/s
DMS 26.10M 119.7/s %Total: 74.38
QC Hits 7.08M 32.5/s 20.19
COM_QUIT 944.74k 4.3/s 2.69
Com_ 939.55k 4.3/s 2.68
+Unknown 23.39k 0.1/s 0.07
Slow 15 0.0/s 0.00 %DMS: 0.00
DMS 26.10M 119.7/s 74.38
SELECT 25.18M 115.5/s 71.74 96.46
UPDATE 488.33k 2.2/s 1.39 1.87
INSERT 376.19k 1.7/s 1.07 1.44
REPLACE 39.35k 0.2/s 0.11 0.15
DELETE 20.73k 0.1/s 0.06 0.08
Com_ 939.55k 4.3/s 2.68
change_db 939.39k 4.3/s 2.68
show_variab 37 0.0/s 0.00
show_tables 34 0.0/s 0.00

__ SELECT and Sort __________________________________________________ ___
Scan 739.90k 3.4/s %SELECT: 2.94
Range 571.93k 2.6/s 2.27
Full join 872 0.0/s 0.00
Range check 0 0/s 0.00
Full rng join 0 0/s 0.00
Sort scan 286.62k 1.3/s
Sort range 22.88M 104.9/s
Sort mrg pass 1.52k 0.0/s

__ Query Cache __________________________________________________ _______
Memory usage 34.12M of 80.00M %Used: 42.65
Block Fragmnt 18.95%
Hits 7.08M 32.5/s
Inserts 24.89M 114.1/s
Insrt:Prune 1.15:1 14.6/s
Hit:Insert 0.28:1

__ Table Locks __________________________________________________ _______
Waited 14.43k 0.1/s %Total: 0.05
Immediate 29.58M 135.6/s

__ Tables __________________________________________________ ____________
Open 2.49k of 2500 %Cache: 99.56
Opened 3.07k 0.0/s

__ Connections __________________________________________________ _______
Max used 1654 of 1800 %Max: 91.89
Total 1.02M 4.7/s

__ Created Temp __________________________________________________ ______
Disk table 14.77k 0.1/s
Table 45.17k 0.2/s
File 3.03k 0.0/s

__ Threads __________________________________________________ ___________
Running 1 of 3
Cached 1021 of 1024 %Hit: 99.84
Created 1.65k 0.0/s
Slow 0 0/s

__ Aborted __________________________________________________ ___________
Clients 152.43k 0.7/s
Connects 5.51k 0.0/s

__ Bytes __________________________________________________ _____________
Sent 436.23G 2.0M/s
Received 7.00G 32.1k/s


Thank you eva

eva2000
Wed 20th Dec '06, 7:31pm
Nice how are they performing right now before optimisation compared to older servers ? cpu loads ? top stats for cpu load, memory, swap ??

1. Install same MySQL 4.1.22 to web server (read further below)
2. Edit /etc/my.cnf and place the following mysql server settings in /etc/my.cnf and restart mysql server afterwards


[mysqld]
skip-name-resolve
safe-show-database
back_log = 200
skip-innodb
max_connections = 2000
key_buffer = 256M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 6M
table_cache = 3000
thread_cache_size = 1024
wait_timeout = 15
connect_timeout = 10
tmp_table_size = 512M
max_heap_table_size = 512M
max_allowed_packet = 96M
max_connect_errors = 10000
read_rnd_buffer_size = 1M
bulk_insert_buffer_size = 8M
query_cache_limit = 5M
query_cache_size = 128M
query_cache_type = 1
query_prealloc_size = 163840
query_alloc_block_size = 32768
default-storage-engine = MyISAM
thread_concurrency = 8

[mysqld_safe]
nice = -10
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M

[mysqlhotcopy]
interactive-timeout


3. On web server, install APC Cache lastest version from http://pecl.php.net/package/APC. Read install guide at http://www.vbulletin.com/forum/showthread.php?t=165367 - please remove Zend Optimizer from php.ini before installing APC Cache

4. Upgrade to vB 3.5.7 http://www.vbulletin.com/forum/showthread.php?t=209719 if you're on vB 3.5.x. Stick with vB 3.5.x branch for a month or two to see how new server performs.

5. If you just upgraded to vB 3.5.x/3.6.x try to disable these 4 options:

Admin CP -> vBulletin Options -> Forums Home Page Options -> Display Logged in Users?

Admin CP -> vBulletin Options -> Forum Display Options (forumdisplay) -> Show Users Browsing Forums

Admin CP -> vBulletin Options -> Thread Display Options -> Show Users Browsing Thread

Admin CP -> vBulletin Options -> Message Searching Options -> Automatic Similar Thread search

6. Edit httpd.conf values from

KeepAlive off
MaxKeepAliveRequests 100
KeepAliveTimeout 4
MinSpareServers 10
MaxSpareServers 25
StartServers 15
MaxClients 200
MaxRequestsPerChild 500

to

KeepAlive off try on and see which is better
MaxKeepAliveRequests 150
KeepAliveTimeout 4
MinSpareServers 25
MaxSpareServers 30
StartServers 25
MaxClients 512
MaxRequestsPerChild 5000

restart apache

7. You may need to install same mysql version on web server, and recompile PHP with the --with-mysql=/path/to/mysql option to tell PHP to use the latest mysql 4.1.x client libraries i.e. if mysqldump/mysqlcheck/mysqladmin are located at /usr/bin/ or /usr/local/mysql/bin then you need to compile PHP with --with-mysql=/usr or --with-mysql=/usr/local/mysql - just had a few issues with one vB client have issues with PHP connecting to external mysql server until i did this.

8. If you have split web + db servers, ensure web server has dual network cards as outlined at http://www.vbulletin.org/forum/showthread.php?t=111191

Black_Widow
Tue 26th Dec '06, 8:23am
Hello Eva,
on my webserver I've two network cards, one for public and one for private network.

I'm using your setts with keepalice On and myslq nice = -10 but sometimes on database server Mysqld user 100% CPU and my site freezes.

Now I try to user Keepalive off and not to use nice = -10 on mysql ok?


Thank you.

eva2000
Wed 27th Dec '06, 6:58pm
try all combinations keepalive off + nice -10 and off with nice -5 or disabled/commented out