Server Using Swap... Why Is That?

I'm on a new server with the following specs:

- P4 2GHz
- 1 GB RAM
- 80 GB 7200RPM Drive
- RH Linux 7.2
- PHP 4.3.0
- MySQL 3.23.41

Recently the server would get slow for brief moments so I SSH'd in and checked out top and saw this:
Code: 
 2:09pm up 3 days, 20:28, 1 user, load average: 0.48, 0.68, 0.63
133 processes: 130 sleeping, 3 running, 0 zombie, 0 stopped
CPU states: 26.7% user, 6.0% system, 0.0% nice, 67.2% idle
Mem: 1031184K av, 1016808K used, 14376K free, 0K shrd, 78936K buff
Swap: 1044216K av, 5236K used, 1038980K free 802480K cached
It looks like my memory is almost all used up and some disk swap is starting to be used. My site averages about 1xx people on a day and can reach over 200 or more at times. Could I just need additional memory or do I most likely have to tweak a few settings to get things straight. Also, is it possible I have a memory leak that's causing the memory to disipate?

Here's my my.cnf:
Code: 
[mysqld]
port = 3306
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-locking
set-variable = max_connections=450
set-variable = key_buffer=16M
set-variable = myisam_sort_buffer_size=64M
set-variable = join_buffer=1M
set-variable = record_buffer=1M
set-variable = sort_buffer=2M
set-variable = table_cache=1024
set-variable = thread_cache_size=256
set-variable = wait_timeout=9600
set-variable = connect_timeout=10
set-variable = max_allowed_packet=16M
set-variable = max_connect_errors=10
[mysql.server]
user=mysql
basedir=/var/lib
[safe_mysqld]
open_files_limit=8192
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysqldump]
quick
set-variable = max_allowed_packet=16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[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
[mysqlhotcopy]
interactive-timeout
And here's my dbstats:
http://www.evolutionm.net/dbstats.php

Thanks,

Mark

 

 

 

 

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