Curiously, I found drastic improvement when I made the following change: httpd_accel_with_proxy on Obviously this requires tighter acl's for proper security. Anyone know why this made such a huge difference??? -----Original Message----- From: Dan Thomson [mailto:thomson.dan@xxxxxxxxx] Sent: Wednesday, May 03, 2006 6:03 PM To: Gregori Parker Subject: Re: download rates w/ squid I'm curious about this one as well. Oddly enough, I seem to get a quick response until an object is cached. Once cached, the object is transferred at a greatly reduced speed. My setup is pretty similar but it's on a 64 bit machine with a lot of RAM and tonnes of hard drive space (for caching) On 5/3/06, Gregori Parker <gregori@xxxxxxxxxxxxxx> wrote: > Once again, I'm using squid as an http-accelerator... > > Squid seems to be capping rate of transfer to around 80 KB/s...I'm doing this transfer locally from one squid box to another via wget. If I do this same transfer using scp, I get around 90 MB/s sustained. I'm also noticing drastic fluctuations in speed when downloading from squid...every once in awhile it will jump up to 300 KB/s, but then fall back down to around 80 KB/s again. > > I have eliminated the network, hardware and server configuration as potential problems -- I'm 99.8% sure it's squid. > > Does anyone have any ideas as to why squid is having trouble filling the pipe? > > Here's my trimmed down conf file...... > ------------------------------------------------------ > > http_port 80 > icp_port 0 > # no cache_peer entries > cache_mem 256 MB > cache_swap_low 90 > cache_swap_high 98 > maximum_object_size 256 MB > maximum_object_size_in_memory 1024 KB > cache_replacement_policy lru > memory_replacement_policy lru > cache_dir aufs /cache0/c0 40960 16 256 > cache_dir aufs /cache0/c1 40960 16 256 > # ...etc, 12 in total > cache_access_log /usr/local/squid/var/logs/access.log > cache_log /usr/local/squid/var/logs/cache.log > cache_store_log none > emulate_httpd_log on > pid_filename /var/run/squid.pid > debug_options ALL,1 > > redirect_program /usr/local/squid/redir.pl > redirect_children 20 > redirect_rewrites_host_header off > refresh_pattern . 0 0% 4320 > half_closed_clients off > shutdown_lifetime 4 seconds > > # ACCESS CONTROLS (simplified) > acl all src 0.0.0.0/0.0.0.0 > acl origins dst xx.xxx.xxx.x/255.255.255.192 > acl acceleratedPort port 80 > http_access allow all > http_access allow origins acceleratedPort > http_reply_access allow all > > httpd_accel_port 80 > httpd_accel_host my.accelerated.hostname.com > httpd_accel_single_host on > httpd_accel_with_proxy off > httpd_accel_uses_host_header off > > logfile_rotate 0 > log_icp_queries off > icp_hit_stale on > client_db off > snmp_port 161 > acl SNMPPasswd snmp_community nottherealstring > acl SNMPClient1 src xxx.xxx.xxx.xx/255.255.255.255 > acl SNMPClient2 src xxx.xxx.xxx.xx/255.255.255.255 > snmp_access allow SNMPClient1 SNMPPasswd > snmp_access allow SNMPClient2 SNMPPasswd > snmp_access deny all > uri_whitespace allow > strip_query_terms off > relaxed_header_parser warn > > >
