Hi all,
I'm going crazy with squid configuration. I've been trying to make it work
fine for couple of weeks and finally gave up. Please, help! :)
The problem is that squid responses are very very slow. I can notice a
significant delays even when I use squid by myself (only my browser using
it) and if I let some more people use it as transparent proxy, there is
barely any response from squid on all machines.
I install squid on slackware 12.2. Already tried few versions
(2.7.STABLE5,2.7.STABLE6, 3.0.STABLE11) and many compile parameters. Let's
say I do:
./configure \
--prefix=/usr \
--includedir=/usr/include \
--datadir=/usr/share \
--bindir=/usr/sbin \
--libexecdir=/usr/lib/squid \
--localstatedir=/var \
--sysconfdir=/etc/squid
I have the other instance of squid on other machine which works fine. But
even when I move the config from this machine to my slackware box it does
the same way - SLOW.
System configuration is:
# uname -a
Linux ninja 2.6.27.7-smp #2 SMP Thu Nov 20 22:32:43 CST 2008 i686 Intel(R)
Xeon(TM) CPU 3.40GHz GenuineIntel GNU/Linux
# free -m
total used free shared buffers cached
Mem: 3036 666 2370 0 356 203
-/+ buffers/cache: 107 2929
Swap: 4102 0 4102
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 30G 6.8G 22G 24% /
tmpfs 1.5G 0 1.5G 0% /dev/shm
This is what I call SLOW:
$ time w3m -dump www.slackware.org
[...]
real 3m9.045s
^^^^^^^^ !!!
user 0m0.032s
sys 0m0.008s
================== squidclient mgr:info ============================
HTTP/1.0 200 OK
Server: squid/2.7.STABLE6
Date: Thu, 12 Feb 2009 14:27:43 GMT
Content-Type: text/plain
Expires: Thu, 12 Feb 2009 14:27:43 GMT
X-Cache: MISS from ninja
Via: 1.0 ninja:3128 (squid/2.7.STABLE6)
Connection: close
Squid Object Cache: Version 2.7.STABLE6
Start Time: Thu, 12 Feb 2009 14:09:54 GMT
Current Time: Thu, 12 Feb 2009 14:27:43 GMT
Connection information for squid:
Number of clients accessing cache: 113
Number of HTTP requests received: 3487
Number of ICP messages received: 0
Number of ICP messages sent: 0
Number of queued ICP replies: 0
Request failure ratio: 0.00
Average HTTP requests per minute since start: 195.7
Average ICP messages per minute since start: 0.0
Select loop called: 54532 times, 19.601 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 23.5%, 60min: 15.9%
Byte Hit Ratios: 5min: 7.5%, 60min: 9.3%
Request Memory Hit Ratios: 5min: 42.6%, 60min: 46.1%
Request Disk Hit Ratios: 5min: 21.1%, 60min: 23.9%
Storage Swap size: 35564 KB
Storage Mem size: 4520 KB
Mean Object Size: 12.13 KB
Requests given to unlinkd: 35
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 0.01164 0.02742
Cache Misses: 0.03066 0.03829
Cache Hits: 0.00000 0.00000
Near Hits: 0.06286 0.01309
Not-Modified Replies: 0.00000 0.00000
DNS Lookups: 0.00094 0.00094
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 1068.862 seconds
CPU Time: 2.192 seconds
CPU Usage: 0.21%
CPU Usage, 5 minute avg: 0.23%
CPU Usage, 60 minute avg: 0.21%
Process Data Segment Size via sbrk(): 8536 KB
Maximum Resident Size: 0 KB
Page faults with physical i/o: 0
Memory usage for squid via mallinfo():
Total space in arena: 8536 KB
Ordinary blocks: 8450 KB 12 blks
Small blocks: 0 KB 0 blks
Holding blocks: 2664 KB 2 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 85 KB
Total in use: 11114 KB 99%
Total free: 85 KB 1%
Total size: 11200 KB
Memory accounted for:
Total accounted: 6216 KB
memPoolAlloc calls: 483763
memPoolFree calls: 449379
File descriptor usage for squid:
Maximum number of file descriptors: 8192
Largest file desc currently in use: 95
Number of file desc currently in use: 55
Files queued for open: 0
Available number of file descriptors: 8137
Reserved number of file descriptors: 100
Store Disk files open: 0
IO loop method: epoll
Internal Data Structures:
2978 StoreEntries
980 StoreEntries with MemObjects
976 Hot Object Cache Items
2931 on-disk objects
=============== squid.conf [ almost default ] ==================
root@ninja:/etc/squid# cat squid.conf | grep -v '^#' | uniq
acl all src all
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8
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 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
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
http_access deny all
icp_access allow localnet
icp_access deny all
http_port 3128 transparent
hierarchy_stoplist cgi-bin ?
cache_mem 256 MB
cache_dir ufs /var/squid/cache 20000 64 256
access_log /var/log/squid/access.log squid
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
pid_filename /var/run/squid.pid
netdb_filename /var/log/squid/netdb.state
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
acl shoutcast rep_header X-HTTP09-First-Line ^ICY.[0-9]
upgrade_http0.9 deny shoutcast
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
cache_effective_user squid
cache_effective_user squid
coredump_dir /var/squid/cache
================= cache.log =====================
2009/02/12 14:15:01| Starting Squid Cache version 2.7.STABLE6 for
i686-pc-linux-gnu...
2009/02/12 14:15:01| Process ID 30656
2009/02/12 14:15:01| With 8192 file descriptors available
2009/02/12 14:15:01| Using epoll for the IO loop
2009/02/12 14:15:01| Performing DNS Tests...
2009/02/12 14:15:01| Successful DNS name lookup tests...
2009/02/12 14:15:01| DNS Socket created at 0.0.0.0, port 51877, FD 6
2009/02/12 14:15:01| Adding nameserver 213.134.134.134 from /etc/resolv.conf
2009/02/12 14:15:01| logfileOpen: opening log /var/log/squid/access.log
2009/02/12 14:15:01| Unlinkd pipe opened on FD 11
2009/02/12 14:15:01| Swap maxSize 20480000 + 262144 KB, estimated 0 objects
2009/02/12 14:15:01| Target number of buckets: 79777
2009/02/12 14:15:01| Using 131072 Store buckets
2009/02/12 14:15:01| Max Mem size: 262144 KB
2009/02/12 14:15:01| Max Swap size: 20480000 KB
2009/02/12 14:15:01| logfileOpen: opening log /var/log/squid/store.log
2009/02/12 14:15:01| Rebuilding storage in /var/squid/cache (DIRTY)
2009/02/12 14:15:01| Using Least Load store dir selection
2009/02/12 14:15:01| Set Current Directory to /var/squid/cache
2009/02/12 14:15:01| Loaded Icons.
2009/02/12 14:15:01| Accepting transparently proxied HTTP connections at
10.10.0.26, port 3128, FD 13.
2009/02/12 14:15:01| Accepting ICP messages at 0.0.0.0, port 3130, FD 14.
2009/02/12 14:15:01| WCCP Disabled.
2009/02/12 14:15:01| Ready to serve requests.
2009/02/12 14:15:01| Done reading /var/squid/cache swaplog (1138 entries)
2009/02/12 14:15:01| Finished rebuilding storage from disk.
2009/02/12 14:15:01| 1095 Entries scanned
2009/02/12 14:15:01| 0 Invalid entries.
2009/02/12 14:15:01| 0 With invalid flags.
2009/02/12 14:15:01| 1095 Objects loaded.
2009/02/12 14:15:01| 0 Objects expired.
2009/02/12 14:15:01| 42 Objects cancelled.
2009/02/12 14:15:01| 0 Duplicate URLs purged.
2009/02/12 14:15:01| 0 Swapfile clashes avoided.
2009/02/12 14:15:01| Took 0.3 seconds (3929.1 objects/sec).
2009/02/12 14:15:01| Beginning Validation Procedure
2009/02/12 14:15:01| Completed Validation Procedure
2009/02/12 14:15:01| Validated 1053 Entries
2009/02/12 14:15:01| store_swap_size = 12804k
2009/02/12 14:15:02| storeLateRelease: released 0 objects
