Hallo abang-abang, om-om semua yang master...^_^

Mohon bantuan nya donk.
lagi ada trouble nih di load cpu nya tinggi banged, padahal awal-awal sih ngga, udah maknyos dah pake nginx..eh sekarang load nya naik terus..spesifikasi pake vps
RAM = 768M
SWAP = 1567M
CPU = 2

ini config my.cnf nya

[mysqld]
#skip-name-resolve
safe-show-database
#old_passwords
back_log = 50
skip-innodb
max_connections = 500
key_buffer_size = 1536M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 5000
thread_cache_size = 384
wait_timeout = 20
connect_timeout = 10
tmp_table_size = 64M
max_heap_table_size = 64M
max_allowed_packet = 64M
net_buffer_length = 16384
max_connect_errors = 100000
thread_concurrency = 4
concurrent_insert = 2
table_lock_wait_timeout = 30
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 3M
query_cache_size = 64M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
range_alloc_block_size = 4096
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
max_write_lock_count = 8

[mysqld_safe]
nice = -5
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 64M

[myisamchk]
key_buffer_size = 144M
sort_buffer_size = 16M
read_buffer_size = 16M
write_buffer_size = 16M

untuk gambar load nya kaya gini..
http://video.eurekapage.com/files/photos/1319808563e83d46_o.jpg

Mohon bantuan nya para master...

di jawab nya sama orang bule.. parah dah, sesama orang indonesia ga ada yang mau bantuin.. gmn mau majuin dunia open source kalo kaya gini....

lah nanya sendiri, jawab sndiri, marah2 sndiri -____-

jangan suudzon dlu ama orang,
mahluk2 disini udah pda jarang nongol jadi ni thread aja baru kebaca dodol !

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Regards,
Toko eZone - The eCommerce Zone
http://www.tokoezone.com