Server optimisation req.

Published by: wktd 2009-01-09

Bay Area Search Engine Marketing Services: Organic Search Engine ::
Organic (or natural) search engine optimization entails researching and Server virtualization is one of the hottest technology trends of the last
http://www.infinitconsulting.com/web/organic-SEO.htmlHOME

Shared server 4 vb sites , 2 very small , 2 large.

dual woodcrest duo's 2ghz
2 gb ram
2 x 250gb sata
Redhat enterprise 4
php 5.2
5.0.24

vb 3.5.3

4 yes
5 cpanel install

6
Tasks: 236 total, 1 running, 234 sleeping, 1 stopped, 0 zombie
Cpu(s): 43.8% us, 14.0% sy, 0.0% ni, 14.4% id, 27.8% wa, 0.1% hi, 0.0% si
Mem: 2074640k total, 1922356k used, 152284k free, 50732k buffers
Swap: 2040212k total, 104336k used, 1935876k free, 890780k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
14397 mysql 15 0 145m 55m 2892 S 80 2.7 0:40.11 mysqld
5663 root 0 -20 0 0 0 D 12 0.0 10:22.73 loop0
13761 nobody 15 0 88132 10m 3636 S 10 0.5 0:00.84 httpd
14627 nobody 15 0 88468 10m 3332 S 9 0.5 0:00.37 httpd
31484 nobody 15 0 99608 57m 39m S 9 2.8 0:22.11 httpd
14556 nobody 15 0 95136 17m 3560 S 8 0.8 0:00.47 httpd
13496 nobody 16 0 94932 16m 3596 S 8 0.8 0:02.08 httpd
13765 nobody 15 0 93592 15m 3588 S 7 0.8 0:00.67 httpd
14633 nobody 15 0 95508 17m 3504 S 7 0.8 0:00.33 httpd
31522 nobody 15 0 99756 65m 47m S 6 3.2 0:25.73 httpd
14595 nobody 15 0 95356 17m 3472 S 6 0.8 0:00.28 httpd
31517 nobody 15 0 96652 62m 48m D 5 3.1 0:23.22 httpd
31516 nobody 15 0 98296 70m 53m S 5 3.5 0:23.27 httpd
14584 nobody 15 0 96324 18m 3620 S 5 0.9 0:00.57 httpd
31518 nobody 16 0 97520 65m 49m S 4 3.2 0:26.37 httpd
13766 nobody 15 0 88680 11m 3808 S 4 0.6 0:01.75 httpd
31538 nobody 15 0 91340 50m 41m S 3 2.5 0:22.52 httpd
14566 nobody 15 0 92324 14m 3512 S 3 0.7 0:00.31 httpd
31515 nobody 16 0 95832 58m 44m S 3 2.9 0:19.54 httpd
13772 nobody 16 0 94880 16m 3632 S 3 0.8 0:01.40 httpd
31508 nobody 15 0 97980 61m 46m S 3 3.0 0:24.47 httpd
13763 nobody 16 0 94276 15m 3728 S 3 0.8 0:01.62 httpd
13767 nobody 15 0 88460 10m 3680 S 3 0.5 0:01.68 httpd
14574 nobody 16 0 91724 13m 3544 S 3 0.7 0:00.27 httpd
31544 nobody 15 0 97576 60m 44m S 2 3.0 0:19.44 httpd
14578 nobody 15 0 91260 13m 3620 S 2 0.7 0:01.79 httpd
11438 nobody 15 0 92552 14m 3828 S 2 0.7 0:06.62 httpd
31486 nobody 16 0 97364 65m 49m S 2 3.2 0:25.30 httpd
31494 nobody 16 0 98772 67m 52m S 2 3.3 0:21.52 httpd
31502 nobody 16 0 99764 61m 44m S 2 3.0 0:25.00 httpd
11476 nobody 15 0 95252 16m 3892 S 2 0.8 0:06.70 httpd
8731 nobody 15 0 92524 14m 3608 S 1 0.7 0:02.80 httpd
13764 nobody 16 0 89560 11m 3588 S 1 0.6 0:00.95 httpd
31532 nobody 15 0 94344 57m 44m S 1 2.8 0:20.27 httpd
14568 nobody 15 0 87876 9.9m 3360 S 1 0.5 0:00.54 httpd
3143 named 18 0 72272 6176 1960 S 1 0.3 0:20.15 named
13769 nobody 15 0 87972 10m 3572 S 1 0.5 0:00.72 httpd
14587 root 15 0 0 0 0 S 1 0.0 0:00.30 pdflush
5664 root 15 0 0 0 0 S 0 0.0 0:24.06 kjournald

7
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-locking
skip-innodb
query_cache_limit=5M
query_cache_size=32M
query_cache_type=1
max_user_connections=500
max_connections=1000
interactive_timeout=10
wait_timeout=30
connect_timeout=10
thread_cache_size=96
key_buffer=64M
join_buffer=1M
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=1024K
read_buffer_size=1024K
max_connect_errors=10
thread_concurrency=8
myisam_sort_buffer_size=32M
server-id=1
log-slow-queries
long_query_time = 5
[mysql.server]
user=mysql
old-passwords = 1
[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid
open_files_limit=8192
[mysqldump]
quick
max_allowed_packet=8M

[mysql]
no-auto-rehash
[isamchk]
key_buffer=64M
sort_buffer=64M
read_buffer=32M
write_buffer=32M
[myisamchk]
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M
[mysqlhotcopy]
interactive-timeout

8
+---------------------------------+------------------------------------------+
Variable_name Value
+---------------------------------+------------------------------------------+
auto_increment_increment 1
auto_increment_offset 1
automatic_sp_privileges ON
back_log 50
basedir /
binlog_cache_size 32768
bulk_insert_buffer_size 8388608
character_set_client latin1
character_set_connection latin1
character_set_database latin1
character_set_filesystem binary
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
completion_type 0
concurrent_insert 1
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
div_precision_increment 4
engine_condition_pushdown OFF
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_dynamic_loading YES
have_example_engine NO
have_federated_engine NO
have_geometry YES
have_innodb DISABLED
have_isam NO
have_ndbcluster NO
have_merge_engine YES
have_openssl NO
have_query_cache YES
have_raid NO
have_rtree_keys YES
have_symlink 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_checksums ON
innodb_commit_concurrency 0
innodb_concurrency_tickets 500
innodb_data_file_path
innodb_data_home_dir
innodb_doublewrite ON
innodb_fast_shutdown 1
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_support_xa ON
innodb_sync_spin_loops 20
innodb_table_locks ON
innodb_thread_concurrency 8
innodb_thread_sleep_delay 10000
interactive_timeout 10
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
large_page_size 0
large_pages OFF
license GPL
local_infile ON
locked_in_memory OFF
log OFF
log_bin OFF
log_bin_trust_function_creators OFF
log_error
log_queries_not_using_indexes OFF
log_slave_updates OFF
log_slow_queries ON
log_warnings 1
long_query_time 5
low_priority_updates OFF
lower_case_file_system OFF
lower_case_table_names 0
max_allowed_packet 16776192
max_binlog_cache_size 4294967295
max_binlog_size 1073741824
max_connect_errors 10
max_connections 1000
max_delayed_threads 20
max_error_count 64
max_heap_table_size 16777216
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 4294967295
max_sort_length 1024
max_sp_recursion_depth 0
max_tmp_tables 32
max_user_connections 500
max_write_lock_count 4294967295
multi_range_count 256
myisam_data_pointer_size 6
myisam_max_sort_file_size 2147483647
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 33554432
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 5010
optimizer_prune_level 1
optimizer_search_depth 62
pid_file /var/lib/mysql/server.pid
port 3306
preload_buffer_size 32768
prepared_stmt_count 0

UMT :: Project Portfolio Management - Portfolio Optimization ::
These courses cater for organizations both using the Portfolio Server Duration of Custom Company Courses might vary based on customization requirements.
http://www.umt.com/contents.asp?tid=127HOME

Mental Wanking and Premature Optimization - egolog::
Dec 25, 2007 On hearing 500rps as a requirement a common reaction is to jump too Now, if I was to go out and spend $2000 dollars on a server just how
http://egolog.com/blog/2007/12/25/mental-wanking-and-premature-optimizationHOME

protocol_version 10
query_alloc_block_size 8192
query_cache_limit 5242880
query_cache_min_res_unit 4096
query_cache_size 33554432
query_cache_type ON
query_cache_wlock_invalidate OFF
query_prealloc_size 8192
range_alloc_block_size 2048
read_buffer_size 1044480
read_only OFF
read_rnd_buffer_size 262144
relay_log_purge ON
relay_log_space_limit 0
rpl_recovery_rank 0
secure_auth OFF
server_id 1
skip_external_locking ON
skip_networking OFF
skip_show_database OFF
slave_compressed_protocol OFF
slave_load_tmpdir /tmp/
slave_net_timeout 3600
slave_skip_errors OFF
slave_transaction_retries 10
slow_launch_time 2
socket /var/lib/mysql/mysql.sock
sort_buffer_size 1048568
sql_big_selects ON
sql_mode
sql_notes ON
sql_warnings OFF
ssl_ca
ssl_capath
ssl_cert
ssl_cipher
ssl_key
storage_engine MyISAM
sync_binlog 0
sync_frm ON
system_time_zone GMT
table_cache 1024
table_lock_wait_timeout 50
table_type MyISAM
thread_cache_size 96
thread_stack 196608
time_format %H:%i:%s
time_zone SYSTEM
timed_mutexes OFF
tmp_table_size 33554432
tmpdir /tmp/
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
tx_isolation REPEATABLE-READ
updatable_views_with_limit YES
version 5.0.24-standard-log
version_comment MySQL Community Edition - Standard (GPL)
version_compile_machine i686
version_compile_os pc-linux-gnu
wait_timeout 30
+---------------------------------+------------------------------------------+
+-----------------------------------+-----------+
Variable_name Value
+-----------------------------------+-----------+
Aborted_clients 10
Aborted_connects 0
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 6916655
Bytes_sent 416451628
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 889
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 335
Com_dealloc_sql 0
Com_delete 50
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 346
Com_insert_select 0
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 214
Com_replace_select 0
Com_reset 0
Com_restore_table 0
Com_revoke 0
Com_revoke_all 0
Com_rollback 0
Com_savepoint 0
Com_select 5385
Com_set_option 4
Com_show_binlog_events 0
Com_show_binlogs 1
Com_show_charsets 1
Com_show_collations 1
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 1
Com_show_slave_hosts 0
Com_show_slave_status 0
Com_show_status 4
Com_show_storage_engines 0
Com_show_tables 0
Com_show_triggers 0
Com_show_variables 6
Com_show_warnings 0
Com_slave_start 0
Com_slave_stop 0
Com_stmt_close 0
Com_stmt_execute 0
Com_stmt_fetch 0
Com_stmt_prepare 0
Com_stmt_reset 0
Com_stmt_send_long_data 0
Com_truncate 6
Com_unlock_tables 0
Com_update 1827
Com_update_multi 0
Com_xa_commit 0
Com_xa_end 0
Com_xa_prepare 0
Com_xa_recover 0
Com_xa_rollback 0
Com_xa_start 0
Compression OFF
Connections 802
Created_tmp_disk_tables 9
Created_tmp_files 143
Created_tmp_tables 442
Delayed_errors 0
Delayed_insert_threads 1
Delayed_writes 31
Flush_commands 1
Handler_commit 0
Handler_delete 12
Handler_discover 0
Handler_prepare 0
Handler_read_first 833
Handler_read_key 105099
Handler_read_next 3912413
Handler_read_prev 4687
Handler_read_rnd 26616
Handler_read_rnd_next 19576198
Handler_rollback 0
Handler_savepoint 0
Handler_savepoint_rollback 0
Handler_update 5184
Handler_write 26787
Innodb_buffer_pool_pages_data 0
Innodb_buffer_pool_pages_dirty 0
Innodb_buffer_pool_pages_flushed 0
Innodb_buffer_pool_pages_free 0
Innodb_buffer_pool_pages_latched 0
Innodb_buffer_pool_pages_misc 0
Innodb_buffer_pool_pages_total 0
Innodb_buffer_pool_read_ahead_rnd 0
Innodb_buffer_pool_read_ahead_seq 0
Innodb_buffer_pool_read_requests 0
Innodb_buffer_pool_reads 0
Innodb_buffer_pool_wait_free 0
Innodb_buffer_pool_write_requests 0
Innodb_data_fsyncs 0
Innodb_data_pending_fsyncs 0
Innodb_data_pending_reads 0
Innodb_data_pending_writes 0
Innodb_data_read 0
Innodb_data_reads 0
Innodb_data_writes 0
Innodb_data_written 0
Innodb_dblwr_pages_written 0
Innodb_dblwr_writes 0
Innodb_log_waits 0
Innodb_log_write_requests 0
Innodb_log_writes 0
Innodb_os_log_fsyncs 0
Innodb_os_log_pending_fsyncs 0
Innodb_os_log_pending_writes 0
Innodb_os_log_written 0
Innodb_page_size 0
Innodb_pages_created 0
Innodb_pages_read 0
Innodb_pages_written 0
Innodb_row_lock_current_waits 0
Innodb_row_lock_time 0
Innodb_row_lock_time_avg 0
Innodb_row_lock_time_max 0
Innodb_row_lock_waits 0
Innodb_rows_deleted 0
Innodb_rows_inserted 0
Innodb_rows_read 0
Innodb_rows_updated 0
Key_blocks_not_flushed 0
Key_blocks_unused 50823
Key_blocks_used 7167
Key_read_requests 680935
Key_reads 7170
Key_write_requests 1131
Key_writes 734
Last_query_cost 0.000000
Max_used_connections 79
Not_flushed_delayed_rows 0
Open_files 1090
Open_streams 0
Open_tables 863
Opened_tables 881
Qcache_free_blocks 273
Qcache_free_memory 20820408
Qcache_hits 17173
Qcache_inserts 4751
Qcache_lowmem_prunes 0
Qcache_not_cached 615
Qcache_queries_in_cache 1583
Qcache_total_blocks 3836
Questions 26972
Rpl_status NULL
Select_full_join 35
Select_full_range_join 1
Select_range 1765
Select_range_check 0
Select_scan 1203
Slave_open_temp_tables 0
Slave_retried_transactions 0
Slave_running OFF
Slow_launch_threads 0
Slow_queries 176
Sort_merge_passes 145
Sort_range 750
Sort_rows 1507615
Sort_scan 498
Table_locks_immediate 11820
Table_locks_waited 757
Tc_log_max_pages_used 0
Tc_log_page_size 0
Tc_log_page_waits 0
Threads_cached 15
Threads_connected 65
Threads_created 79
Threads_running 61
Uptime 329
+-----------------------------------+-----------+
Uptime: 329 Threads: 65 Questions: 26973 Slow queries: 176 Opens: 881 Flush tables: 1 Open tables: 863 Queries per second avg: 81.985
mysqladmin Ver 8.41 Distrib 5.0.24, for pc-linux-gnu on i686
(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 5.0.24-standard-log
Protocol version 10
Connection Localhost via UNIX socket
UNIX socket /var/lib/mysql/mysql.sock
Uptime: 5 min 29 sec
Threads: 65 Questions: 26973 Slow queries: 176 Opens: 881 Flush tables: 1 Open tables: 863 Queries per second avg: 81.985

__ Key __________________________________________________ _______________
Buffer used 11.98M of 64.00M %Used: 18.72
Current 19.35M %Usage: 30.24
Write ratio 0.694
Read ratio 0.005
__ Questions __________________________________________________ _________
Total 73.89k 59.4/s
QC Hits 45.47k 36.6/s %Total: 61.54
DMS 22.64k 18.2/s 30.65
Com_ 3.59k 2.9/s 4.85
COM_QUIT 2.29k 1.8/s 3.10
-Unknown 107 0.1/s 0.14
Slow 896 0.7/s 1.21 %DMS: 3.96
DMS 22.64k 18.2/s 30.65
SELECT 15.34k 12.3/s 20.76 67.73
UPDATE 5.42k 4.4/s 7.33 23.92
INSERT 1.09k 0.9/s 1.47 4.80
REPLACE 656 0.5/s 0.89 2.90
DELETE 148 0.1/s 0.20 0.65
Com_ 3.59k 2.9/s 4.85
change_db 2.62k 2.1/s 3.54
create_tabl 912 0.7/s 1.23
truncate 19 0.0/s 0.03
__ SELECT and Sort __________________________________________________ ___
Scan 3.30k 2.7/s %SELECT: 21.50
Range 5.47k 4.4/s 35.69
Full join 134 0.1/s 0.87
Range check 0 0/s 0.00
Full rng join 1 0.0/s 0.01
Sort scan 1.53k 1.2/s
Sort range 2.27k 1.8/s
Sort mrg pass 393 0.3/s
__ Query Cache __________________________________________________ _______
Memory usage 22.30M of 32.00M %Used: 69.69
Block Fragmnt 14.53%
Hits 45.47k 36.6/s
Inserts 13.14k 10.6/s
Insrt:Prune 13.14k:1 10.6/s
Hit:Insert 3.46:1
__ Table Locks __________________________________________________ _______
Waited 2.89k 2.3/s %Total: 7.50
Immediate 35.60k 28.6/s
__ Tables __________________________________________________ ____________
Open 1.02k of 1024 %Cache: 100.00
Opened 2.21k 1.8/s
__ Connections __________________________________________________ _______
Max used 150 of 1000 %Max: 15.00
Total 2.35k 1.9/s
__ Created Temp __________________________________________________ ______
Disk table 24 0.0/s
Table 1.36k 1.1/s
File 402 0.3/s

__ Threads __________________________________________________ ___________
Running 3 of 12
Cached 89 of 96 %Hit: 93.62
Created 150 0.1/s
Slow 0 0/s
__ Aborted __________________________________________________ ___________
Clients 112 0.1/s
Connects 0 0/s
__ Bytes __________________________________________________ _____________
Sent 1.37G 1.1M/s
Received 17.16M 13.8k/s
__ InnoDB Buffer Pool __________________________________________________
Usage 0 of 0 %Used: 0.00
Read ratio 0.000
Pages
Free 0 %Total: 0.00
Data 0 0.00 %Drty: 0.00
Misc 0 0.00
Latched 0 0.00
Reads 0 0/s
From file 0 0/s 0.00
Ahead Rnd 0 0/s
Ahead Sql 0 0/s
Writes 0 0/s
Flushes 0 0/s
Wait Free 0 0/s
__ InnoDB Lock __________________________________________________ _______
Waits 0 0/s
Current 0
Time acquiring
Total 0 ms
Average 0 ms
Max 0 ms
__ InnoDB Data, Pages, Rows ____________________________________________
Data
Reads 0 0/s
Writes 0 0/s
fsync 0 0/s
Pending
Reads 0
Writes 0
fysnc 0
Pages
Created 0 0/s
Read 0 0/s
Written 0 0/s
Rows
Deleted 0 0/s
Inserted 0 0/s
Read 0 0/s
Updated 0 0/s

9 mostly vb , a small xoops site & html sites

from 200 to upto 450 users at a time on server

Cookie timeout 900

11 http://www.in-here.org/phpinfo.php

11.2
KeepAlive On
MaxKeepAliveRequests 1000
KeepAliveTimeout 15
MinSpareServers 5
MaxSpareServers 10
MaxRequestsPerChild 0
MaxClients 150

12 no files over 2gb

13 Linux server.in-here.org 2.6.9-42.0.8.ELsmp #1 SMP Tue Jan 23 13:01:26 EST 2007 i686 i686 i386 GNU/Linux

core file size (blocks, -c) 1000000
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) 4096
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 14335
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

All 4 cores reporting same as below
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz
stepping : 6
cpu MHz : 1995.125
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 tm2 xtpr
bogomips : 3992.48

Try the following in this exact order. You can ignore any of the suggestions that you have already done.

1. Upgrade MySQL server to latest MySQL 5.x server = 5.0.27 http://dev.mysql.com/doc/refman/5.0/en/releasenotes-cs-5-0-27.html or MySQL 5.0.33. If you need RHEL4/CentOS 4.x rpm binaries or generic i386 5.0.33 rpm binaries check out this post by our vB dev, Scott http://www.vbulletin.com/forum/showpost.php?p=1285851&postcount=6
2. Downgrade to PHP 4.4.4 or if you use PHP 5.2.0 and vB 3.5.x, upgrade to vB 3.5.6 or higher for PHP 5.2.0 compatibility
3. Edit /etc/my.cnf and place the following mysql server settings in /etc/my.cnf and restart mysql server afterwards

[mysqld]
old_passwords
back_log = 50
skip-innodb
max_connections = 500
key_buffer = 64M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 1800
thread_cache_size = 384
wait_timeout = 30
connect_timeout = 10
tmp_table_size = 64M
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 = 4M
query_cache_size = 80M
query_cache_type = 1
query_prealloc_size = 65536
query_alloc_block_size = 131072
default-storage-engine = MyISAM

[mysql.server]
user=mysql

[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

4. Install Xcache which seems to be a bit faster than APC Cache - http://www.vbulletin.com/forum/showthread.php?t=213267

5. Upgrade to vB 3.0.17 http://www.vbulletin.com/forum/showthread.php?t=209720 if you're on vB 3.0.xx or upgrade to vB 3.5.7 http://www.vbulletin.com/forum/showthread.php?t=209719 if you're on vB 3.5.x. Upgrade to vB 3.6.4 http://www.vbulletin.com/forum/showthread.php?t=209717 if you're on vB 3.6.x

6. 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

7. Edit httpd.conf values to the following

KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5
MinSpareServers 10
MaxSpareServers 15
MaxRequestsPerChild 1000
MaxClients 180

am i missing any info on this ?