[squid-users] does rams has relation to number of open filed descriptors ???

 hi ,
i have 2 squid machine and both of them has the same load of users and BW

but of them has 32 G ram and the other has 48 G ram

here is a comparision between them :

1-server of 32 G ram
squidclient -p 2222 mgr:info | grep 'file des'
        Maximum number of file descriptors: 65536
        Largest file desc currently in use: 52462
        Number of file desc currently in use: 39277
        Available number of file descriptors: 26258
        Reserved number of file descriptors: 100

2-server of 48 G ram

squidclient -p 2222 mgr:info | grep 'file des'
        Maximum number of file descriptors: 65536
        Largest file desc currently in use: 52497
        Number of file desc currently in use: 50191
        Available number of file descriptors: 15345
        Reserved number of file descriptors: 100

note that server 1 has larger number of server 2 relative to Number of
file desc currently in use ,

also , i note that server 1 is making better than server 2 in bw saving .

my question is , does this relative to ram ???

another issue , how do i know that i need to increase my rams ???

also i want my squid.conf to be checked for any thing could be enhance my
server .

here is squid.conf file and it is identical to both servers .

=========================================================================
here is squid.conf file :
include /etc/squid3/vc_squid_3.conf
####################################
############################################################
acl localnetz src 10.11.0.0/16
http_access deny localnetz
#################################################################
###############Redirection of private ips to webpage#############
#################################################################
acl localnetx src 10.12.0.0/16
acl localnety dst 192.168.70.2/32
http_access allow localnetx localnety
http_access deny localnetx
############filtering without squidguard###########
acl blockkeywords dstdomain "/etc/squid3/newsquid-porn.acl"
http_access deny blockkeywords
##########################################################
acl pornreg dstdom_regex "/etc/squid3/squid-regex.acl"
http_access deny pornreg
############################################################
####################################################
####################################################
#acl NO-CACHE-SITES dstdomain "/etc/squid3/not-to-cache-sites.txt"
#no_cache deny NO-CACHE-SITES
################################################################
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
#################################################################################
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged)
machines
acl mysubnet src 1xxxxxxxxxxxxxxxxxxxxxxxx
http_access allow mysubnet
###################################################################################
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
######################################################
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
################################################
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
###################################################################
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
#####################################################################
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
##################################################################
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
###################################################################
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost
##############################################################
# And finally deny all other access to this proxy
http_access deny all
###########################################################
# Squid normally listens to port 3128
http_port 1xxxxx
http_port xxxxxx
http_port xxxxx tproxy
###########################################################
# We recommend you to use at least the following line.
hierarchy_stoplist cgi-bin ?
###############################################################
# Uncomment and adjust the following to add a disk cache directory.
cache_dir aufs /cache1 90000 32 256
cache_dir aufs /cache2 90000 32 256
cache_dir aufs /cache3 90000 32 256
###########################################################
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
###############################################################
# Add any of your own refresh_pattern entries above these.
########### Refresh_pattern Config:
#####################################################################################################################
#for the music:
refresh_pattern -i
\.(mp2|mp3|mid|midi|mp[234]|wav|ram|ra|rm|au|3gp|m4r|m4a)(\?.*|$) 5259487
999% 5259487 override-expire ignore-reload reload-into-ims ignore-no-cache
ignore-private

#for the movies:
refresh_pattern -i
\.(mpg|mpeg|mp4|m4v|mov|avi|asf|wmv|wma|dat|flv|swf)(\?.*|$) 5259487 999%
5259487 override-expire ignore-reload reload-into-ims ignore-no-cache
ignore-private

#for pictures:
refresh_pattern -i
\.(jpeg|jpg|jpe|jp2|gif|tiff?|pcx|png|bmp|pic|ico)(\?.*|$) 5259487 999%
5259487 override-expire ignore-reload reload-into-ims ignore-no-cache
ignore-private

#for MS docs:
refresh_pattern -i
\.(chm|dll|doc|docx|xls|xlsx|ppt|pptx|pps|ppsx|mdb|mdbx)(\?.*|$) 5259487
999% 5259487 override-expire ignore-reload reload-into-ims ignore-no-cache
ignore-private

#for various other docs:
refresh_pattern -i \.(txt|conf|cfm|psd|wmf|emf|vsd|pdf|rtf|odt)(\?.*|$)
5259487 999% 5259487 override-expire ignore-reload reload-into-ims
ignore-no-cache ignore-private

#for the well-known compressed/excutable files:
refresh_pattern -i
\.(class|jar|exe|gz|bz|bz2|tar|tgz|zip|gzip|arj|ace|bin|cab|msi|rar)(\?.*|$)
5259487 999% 5259487 override-expire ignore-reload reload-into-ims
ignore-no-cache ignore-private

#for various client-side Web docs:
refresh_pattern -i \.(htm|html|mhtml|css|js)(\?.*|$) 1440 90% 86400
override-expire ignore-reload reload-into-ims
#####################################################################################################################
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
###############################################################
cache_mem 1000 MB
########### WCCP2 Config#############
wccp2_router xxxxxx
wccp_version 2
wccp2_forwarding_method 2
wccp2_return_method 2
wccp2_assignment_method 2
wccp2_service dynamic 60
wccp2_service_info 60 protocol=tcp flags=src_ip_hash priority=250 ports=80
wccp2_service dynamic 70
wccp2_service_info 70 protocol=tcp flags=dst_ip_hash,ports_source
priority=250 ports=80
###################################################################
dns_nameservers xxxxx xxxxx 8.8.8.8
cache_effective_user proxy
cache_effective_group proxy
visible_hostname squid
############################################################
########### Performance Related Config:
relaxed_header_parser on
vary_ignore_expire on
##########################################
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA
maximum_object_size_in_memory 64 KB
###########################################
ipcache_size 2048
ipcache_low 96
ipcache_high 99
memory_pools off
pipeline_prefetch on
############################################
httpd_suppress_version_string on
server_persistent_connections on
client_persistent_connections on
pconn_timeout 2 minutes
persistent_request_timeout 1 minute
###########################################
forwarded_for on
max_filedescriptors 65536
max_open_disk_fds 65536
relaxed_header_parser on
reload_into_ims on
client_lifetime 15 minutes
read_timeout 5 minutes
request_timeout 1 minutes
ie_refresh on
ignore_expect_100 on
vary_ignore_expire on
###############################
################################
httpd_suppress_version_string on
server_persistent_connections on
client_persistent_connections on
pconn_timeout 2 minutes
persistent_request_timeout 1 minute
#shutdown_lifetime 20 seconds
#############################
cache_swap_low 96
cache_swap_high 99
###############################

with my best regards

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