> -----Original Message----- > From: Alex [mailto:linuxro@xxxxxxxxx] > Sent: Wednesday, September 21, 2005 10:58 PM > To: squid-users@xxxxxxxxxxxxxxx > Subject: Re: slower connections using squid (squid is > slowing down all connections) > > > Hi Chris, > > I changed as you suggested me: > - cache_replacement_policy from heap LFUDA to heap GDSF. > - announce_period 0 (this was by default too, but > cachemanager.cgi report me > that is ON!!!!) > - i am not using any accel options (httpd_accel_*), all are > set to default > values (nothing changed here) > - client_persistent_connections from ON to OFF > - i increased redirect_children from 5 (default) to 50.... Am > i wrong?! This shouldn't make a difference, as you have not defined a redirect_program. > > With this new settings, i restarted squid and ... no > improvements. Its > slower!!!! Ouch. > > At 9.40AM, I have: > Connection information for squid: > Number of clients accessing cache: 67 > Number of HTTP requests received: 5439 > Average HTTP requests per minute since start: 136.4 > Cache information for squid: > Request Hit Ratios: 5min: 25.0%, 60min: 30.5% > Byte Hit Ratios: 5min: 11.0%, 60min: 9.0% > Request Memory Hit Ratios: 5min: 0.0%, 60min: 0.1% > Request Disk Hit Ratios: 5min: 56.1%, 60min: 42.8% > Storage Swap size: 3821108 KB > Storage Mem size: 2700 KB > Mean Object Size: 17.31 KB > Requests given to unlinkd: 0 > > Resource usage for squid: > UP Time: 2393.258 seconds > CPU Time: 21.576 seconds > CPU Usage: 0.90% > CPU Usage, 5 minute avg: 0.33% > CPU Usage, 60 minute avg: 0.91% > Process Data Segment Size via sbrk(): 29020 KB > Maximum Resident Size: 0 KB > Page faults with physical i/o: 0 > Memory usage for squid via mallinfo(): > Total space in arena: 29020 KB > Ordinary blocks: 28848 KB 89 blks > Small blocks: 0 KB 0 blks > Holding blocks: 1784 KB 3 blks > Free Small blocks: 0 KB > Free Ordinary blocks: 171 KB > Total in use: 30632 KB 99% > Total free: 171 KB 1% > Total size: 30804 KB > Memory accounted for: > Total accounted: 18153 KB > memPoolAlloc calls: 1579234 > memPoolFree calls: 1126234 > File descriptor usage for squid: > Maximum number of file descriptors: 1024 > Largest file desc currently in use: 162 > Number of file desc currently in use: 146 > Files queued for open: 0 > Available number of file descriptors: 878 > Reserved number of file descriptors: 100 > Store Disk files open: 0 > Internal Data Structures: > 220836 StoreEntries > 456 StoreEntries with MemObjects > 438 Hot Object Cache Items > 220761 on-disk objects > > Also, i have: > Last 5 minutes: > client_http.requests = 2.723098/sec > client_http.hits = 0.779933/sec Well, the box is not being stressed... What is the output of "hdparm -t /dev/sda" (I think SATA shows up as SCSI in linux)? If I set the BIOS to use the SATA drives in "Enhanced" (both SATA and PATA drives are available) or "SATA Only", I get very poor performance. Only if I set them as "Combined" (the SATA drives "act" like a PATA channel) do I get decent performance. > > Here comes ONLY UNCOMMENTED LINES IN squid.conf (grep -v > ^# /etc/squid/squid.conf |grep -v ^$) > > http_port 3128 > hierarchy_stoplist cgi-bin ? > acl QUERY urlpath_regex cgi-bin \? > no_cache deny QUERY > cache_mem 32 MB > maximum_object_size 32768 KB > maximum_object_size_in_memory 32 KB > cache_replacement_policy heap GDSF > memory_replacement_policy heap GDSF > cache_dir diskd /var/spool/squid 20480 16 256 > ftp_user squid@xxxxxxxxx > redirect_children 50 > auth_param basic children 100 > auth_param basic realm Squid proxy-caching server > auth_param basic program /usr/lib/squid/pam_auth > auth_param basic credentialsttl 2 hours > auth_param basic casesensitive off > refresh_pattern ^ftp: 1440 20% 10080 > refresh_pattern ^gopher: 1440 0% 1440 > refresh_pattern . 0 20% 4320 > 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 lanpass proxy_auth REQUIRED > 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 > http_access allow manager localhost > http_access deny manager > http_access deny !Safe_ports > http_access deny CONNECT !SSL_ports > http_access allow localhost > http_access allow lanpass > http_access deny all > http_reply_access allow all > icp_access allow all > cache_mgr admin@xxxxxxxxx > visible_hostname proxy.mydoom.ro > announce_period 0 > log_icp_queries off > cachemgr_passwd *** all > buffered_logs on > coredump_dir /var/spool/squid > client_persistent_connections off > I see nothing in here that would be causing the horrid performance that you are reporting. What do the Median Service Times (under the General Runtime Info) look like? Chris
