會員超過100人時 mysql反應就變慢 請幫我看一下哪設錯了 謝謝 my.ini

cpu=xeon5110雙合心有二棵
記憶体=2gb
my.ini設定值如下:
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#This File was made using the WinMySQLAdmin 1.4 Tool
#2007/11/6 上午 06:28:11

#Uncomment or Add only the keys that you know how works.
#Read the MySQL Manual for instructions


[mysqld]
basedir=D:/mysql
#bind-address=192.168.1.15
datadir=D:/mysql/data
#language=D:/mysql/share/your language directory
#slow query log#=
#tmpdir#=
#port=3306
#set-variable=key_buffer=16M
set-variable=max_connections=1024
skip-locking
#skip-networking
set-variable=key_buffer=512M
set-variable=max_allowed_packet=4M
set-variable=table_cache=4096
set-variable=thread_cache=64
set-variable=join_buffer_size=32M
set-variable=sort_buffer=32M
set-variable=record_buffer=32M
set-variable=max_connections=10000
set-variable=wait_timeout=120
set-variable=interactive_timeout=120
set-variable=max_connect_errors=30000
set-variable=long_query_time=1
set-variable=max_heap_table_size=256M
set-variable=tmp_table_size=128M
# Try number of CPU's*2 for thread_concurrency
set-variable=thread_concurrency=8
set-variable=myisam_sort_buffer_size=128M
#set-variable=connect_timeout=5
#set-variable=wait_timeout=5
server-id=1
[isamchk]
set-variable=key_buffer=128M
set-variable=sort_buffer=128M
set-variable=read_buffer=2M
set-variable=write_buffer=2M
[myisamchk]
set-variable=key_buffer=128M
set-variable=sort_buffer=128M
set-variable=read_buffer=2M
set-variable=write_buffer=2M
[WinMySQLadmin]
Server=D:/mysql/bin/mysqld-nt.exe
user=root
password=1233211234567