[squid-users] Total Free Mem = 0%

hi all,

Im new in this forum, and want to ask something about squid perfomance,
just want to ask, i look into my cachemgr.cgi, and it told me:

Memory usage for squid via mallinfo():
        Total space in arena: 111536 KB
        Ordinary blocks: 111320 KB 36 blks
        Small blocks: 0 KB 0 blks
        Holding blocks: 1844 KB 4 blks
        Free Small blocks: 0 KB
        Free Ordinary blocks: 215 KB
        Total in use: 113164 KB 100%
        Total free: 215 KB 0%
        Total size: 113380 KB

And my squid.conf look like this:
================================================================
http_port 0.0.0.0:3128
icp_port 0
udp_incoming_address 0.0.0.0
udp_outgoing_address 255.255.255.255
icp_query_timeout 0
maximum_icp_query_timeout 2000
mcast_icp_query_timeout 2000
dead_peer_timeout 10 seconds
hierarchy_stoplist cgi-bin
hierarchy_stoplist ?
hierarchy_stoplist .js
hierarchy_stoplist .jsp
no_cache Deny QUERY
cache_mem 134217728 bytes
cache_swap_low 90
cache_swap_high 95
maximum_object_size 134217728 bytes
minimum_object_size 0 bytes
maximum_object_size_in_memory 65536 bytes
ipcache_size 10240
ipcache_low 98
ipcache_high 99
fqdncache_size 10240
cache_replacement_policy LFUDA
memory_replacement_policy heap GDSF
cache_dir ufs /cache 20000 16 256
cache_access_log /var/log/squid/access.log
cache_log none
cache_store_log none
emulate_httpd_log off
log_ip_on_direct on
mime_table /etc/squid/mime.conf
log_mime_hdrs off
pid_filename /var/run/squid.pid
debug_options ALL,1
log_fqdn off
client_netmask 255.255.255.255
ftp_user Squid@
ftp_list_width 32
ftp_passive on
ftp_sanitycheck on
ftp_telnet_protocol on
dns_retransmit_interval 5 seconds
dns_timeout 120 seconds
hosts_file /etc/hosts
diskd_program /usr/lib/squid/diskd
unlinkd_program /usr/lib/squid/unlinkd
redirect_children 5
redirect_rewrites_host_header on
authenticate_cache_garbage_interval 3600 seconds
authenticate_ttl 3600 seconds
authenticate_ip_ttl 0 seconds
wais_relay_port 0
request_header_max_size 20480 bytes
request_body_max_size 0 bytes

==================================================

Im running squid 2.5Stable 9,
My box is p4 2.8ghz, 2gb ecc ram, 80gb sata hardisk

Is there something wrong with my Total Free Mem= 0% ? or i pushed my box
to far?

NB:
I looked from the running proccess through top, it show:

[root@gx ~]# top
top - 19:18:50 up 16 days, 28 min, 1 user, load average: 0.10, 0.05, 0.01
Tasks: 51 total, 2 running, 49 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.3% us, 0.7% sy, 0.0% ni, 96.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 2075644k total, 2009940k used, 65704k free, 373304k buffers
Swap: 3381660k total, 208k used, 3381452k free, 951508k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 5794 root 15 0 42356 40m 1096 S 3.3 2.0 38:02.57 bgpd
  924 squid 15 0 120m 118m 1344 S 0.7 5.8 0:30.67 squid
 2884 root 15 0 1536 464 404 S 0.3 0.0 3:33.09 klogd
    1 root 16 0 1684 544 472 S 0.0 0.0 0:00.98 init
    2 root 34 19 0 0 0 S 0.0 0.0 0:01.50 ksoftirqd/0

and when i look deeply, the Free Mem is reduced very fast.....and the
squid process grew quickly instead.

Someone can help me to understand this?

Thank you in Advance,

-- 
Mandala,
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