[squid-users] 转发: Squid Slow Downloads problem

Hi, squid-users:

I have met a slow download problem of squid , would anybody like to tell me what’s the matter with my squid Or is there any way to resolve this problem ?

Squid info:

[root@CHN-SH-3-341 ~]# squid -v
Squid Cache: Version 2.5.STABLE12
configure options: --prefix=/usr/local/squid --enable-epoll --disable-ident-lookups --enable-async-io=160 --enable-storeio=ufs,aufs,diskd --enable-snmp --enable-cache-digests --enable-useragent-log --enable-referer-log --enable-kill-parent-hack --enable--internal-dns
----------------------------------------------

squid.conf:

http_port 80
icp_port 0
acl httpmp3 url_regex -i ^http://.*\.mp3$
no_cache deny httpmp3
acl httpwmv url_regex -i ^http://.*\.wmv$
no_cache deny httpwmv
acl httprm url_regex -i ^http://.*\.rm$
no_cache deny httprm
 cache_mem 1768 MB
 cache_swap_low 70
 cache_swap_high 80
maximum_object_size 204800 KB
minimum_object_size 0 KB
maximum_object_size_in_memory 102400 KB
 cache_replacement_policy lru
 memory_replacement_policy lru
cache_dir diskd /data/cache1 28000 16 256
cache_dir diskd /data/cache2 28000 16 256
logformat squid_custom_log %ts.%03tu %6tr %>a %Ss/%03Hs %<st %rm %ru %un %Sh/%<A %mt "%{Referer}>h" "%{User-Agent}>h" "%{Cookie}>h"
cache_access_log /data/proclog/log/squid/access.log squid_custom_log
cache_log /data/proclog/log/squid/cache.log
cache_store_log none
pid_filename /var/run/squid.pid
 hosts_file /etc/hosts
 diskd_program /usr/local/squid/libexec/diskd
 unlinkd_program /usr/local/squid/libexec/unlinkd
 
 
refresh_pattern -i ^http://player.toodou.com.* 2073600 100% 2073600 ignore-reload
refresh_pattern -i ^http://www.blogcn.com.* 1440 50% 1440
refresh_pattern -i ^http://images.blogcn.com.* 1440 50% 1440
refresh_pattern -i ^http://female.blogcn.com.* 1440 50% 1440
refresh_pattern -i ^http://img.365ren.com.* 720 100% 720
refresh_pattern -i ^http://cfs1.365ren.com.* 720 100% 720
refresh_pattern -i ^http://cafe-img.365ren.com.* 720 100% 720
refresh_pattern -i ^http://cafe-cfs1.365ren.com.* 720 100% 720
refresh_pattern -i ^http 60 0% 60 ignore-reload
collapsed_forwarding on
refresh_stale_hit 0 minute
request_timeout 30 seconds
 persistent_request_timeout 3 seconds
 pconn_timeout 60 seconds
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 563 # https, snews
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
acl monitor src 192.168.1.0/255.255.255.0
http_access allow manager
http_access allow manager monitor
http_access deny manager
acl PURGE method PURGE
http_access allow PURGE localhost
http_access deny purge
acl snmppublic snmp_community public
snmp_access allow snmppublic localhost
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow all
http_reply_access allow all
 cache_mgr squid@chinacache.com
 cache_effective_user squid
 cache_effective_group squid
visible_hostname CHN-SH-3-341
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_single_host off
httpd_accel_with_proxy off
httpd_accel_uses_host_header on
dns_testnames original1.chinacache.com original2.chinacache.com
  logfile_rotate 0
 
cachemgr_passwd test4squid config
 store_avg_object_size 20 KB
client_db off
header_access X-Cache-Lookup deny all
snmp_port 3401
acl snmppublic snmp_community public
 client_persistent_connections off
 server_persistent_connections off
vary_ignore_expire on
strip_query_terms off
negative_ttl 0 minute
dns_retransmit_interval 10 seconds
store_dir_select_algorithm round-robin
dns_timeout 2 minute
negative_dns_ttl 1 minute
connect_timeout 30 seconds
read_timeout 15 minutes

---------------------------------------------------------------------------

Test information: (all test was done to the same box, )

Squid with 80 port:

[root@CHN-SH-3-571 ~]# wget -SO test http://player.toodou.com/flv/001/126/216/1126216.flv
--18:56:54-- http://player.toodou.com/flv/001/126/216/1126216.flv
           => `test'
Resolving player.toodou.com... 192.168.1.131
Connecting to player.toodou.com|192.168.1.131|:80... connected.
HTTP request sent, awaiting response...
  HTTP/1.0 200 OK
  Date: Fri, 14 Jul 2006 05:45:42 GMT
  Content-Length: 42254194
  Content-Type: application/octet-stream
  ETag: "-1897917552"
  Last-Modified: Wed, 12 Jul 2006 11:34:09 GMT
  Server: Microsoft-IIS/6.0
  X-Cache: HIT from origin-player.toodou.com
  Via: 1.0 CHN-SH-4-912 (NetCache NetApp/5.5R5D8), 1.1 CHN-SH-3-911 (NetCache NetApp/6.0.3)
  Age: 39548
  X-Cache: HIT from CHN-SH-3-341
  Connection: close
Length: 42,254,194 (40M) [application/octet-stream]

100%[===================================================================>] 42,254,194 1.19M/s ETA 00:00

18:57:09 (2.76 MB/s) - `test' saved [42254194/42254194]

Squid with 8081 port:

[root@CHN-SH-3-571 ~]# wget -SO test http://player.toodou.com:8081/flv/001/126/216/1126216.flv
--19:07:56-- http://player.toodou.com:8081/flv/001/126/216/1126216.flv
           => `test'
Resolving player.toodou.com... 192.168.1.131
Connecting to player.toodou.com|192.168.1.131|:8081... connected.
HTTP request sent, awaiting response...
  HTTP/1.0 200 OK
  Date: Fri, 14 Jul 2006 05:45:42 GMT
  Content-Length: 42254194
  Content-Type: application/octet-stream
  ETag: "-1897917552"
  Last-Modified: Wed, 12 Jul 2006 11:34:09 GMT
  Server: Microsoft-IIS/6.0
  X-Cache: HIT from origin-player.toodou.com
  Via: 1.0 CHN-SH-4-912 (NetCache NetApp/5.5R5D8), 1.1 CHN-SH-3-911 (NetCache NetApp/6.0.3)
  Age: 40210
  X-Cache: HIT from CHN-SH-3-341
  Connection: close
Length: 42,254,194 (40M) [application/octet-stream]

100%[===================================================================>] 42,254,194 1.26M/s ETA 00:00

19:08:10 (2.85 MB/s) - `test' saved [42254194/42254194]

Apache with 8080 port:

[root@CHN-SH-3-571 ~]# wget -SO test http://player.toodou.com:8080/1126216.flv
--19:25:45-- http://player.toodou.com:8080/1126216.flv
           => `test'
Resolving player.toodou.com... 192.168.1.131
Connecting to player.toodou.com|192.168.1.131|:8080... connected.
HTTP request sent, awaiting response...
  HTTP/1.1 200 OK
  Date: Sun, 16 Jul 2006 11:25:45 GMT
  Server: Apache/2.0.52 (Red Hat)
  Last-Modified: Sun, 16 Jul 2006 10:33:34 GMT
  ETag: "2bd0f-284bf72-7212fb80"
  Accept-Ranges: bytes
  Content-Length: 42254194
  Connection: close
  Content-Type: text/plain; charset=UTF-8
Length: 42,254,194 (40M) [text/plain]

100%[===================================================================>] 42,254,194 57.04M/s

19:25:46 (57.01 MB/s) - `test' saved [42254194/42254194]
       

Best Regards,
Adam

 
 
 
 
  程冬 Adam Cheng
  网络运行维护部/Network Support & Maintenance
  Tel: (86-10) 64373399-802
  Fax: (86-10) 64374251
  Email: adam.cheng@chinacache.com
  http://www.chinacache.com
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Received on Mon Jul 17 2006 - 07:05:54 MDT