Hello, I run squid servers with the same config on two FreeBSD-4.9 machines (with the same HW/SW). Squid version is 2.5STABLE5 with some patches (installed from FreeBSD ports, to they're mostly official squid patches I'd say).
I tried to increase performance of squid by using diskd, but I noticed that it does NOT change too much in currect configuration. What seems to be worse, it seems that squid performance decreased a bit with diskd. Especially service times for cache misses, and ICP replies to another caches. I'd like to ask - is that normal? Service times are not high, but I would not expect times to increase. It is probable that the performance boost can only be notices on loaded caches (our caches are not loaded much this time). Is that right? I found bug 355 (http://www.squid-cache.org/bugs/show_bug.cgi?id=355) which talks about slow responses for cache hits... Can anyone confirm/comment this issue? Thank you much. some statistics from 2. caches running (nearly) the same time below. cache with diskd: Median Service Times (seconds) 5 min 60 min: HTTP Requests (All): 0.05046 0.05951 Cache Misses: 0.24524 0.23230 Cache Hits: 0.01387 0.01235 Near Hits: 0.05331 0.03241 Not-Modified Replies: 0.00463 0.00678 DNS Lookups: 0.00464 0.00779 ICP Queries: 0.00000 0.00067 cache without diskd: Median Service Times (seconds) 5 min 60 min: HTTP Requests (All): 0.15048 0.09219 Cache Misses: 0.17711 0.15888 Cache Hits: 0.02069 0.01745 Near Hits: 0.17711 0.06286 Not-Modified Replies: 0.02317 0.01955 DNS Lookups: 0.04639 0.02336 ICP Queries: 0.00039 0.00356 note the increased service time for cache misses... Also, as long as those two are siblings to each other: cache with diskd (as seems from cache without diskd): Sibling : proxy-sibling1/3128/3130 Flags : proxy-only Address[0] : 195.168.1.101 Status : Up AVG RTT : 9 msec OPEN CONNS : 0 LAST QUERY : 1 seconds ago LAST REPLY : 1 seconds ago PINGS SENT : 493334 PINGS ACKED: 492225 100% FETCHES : 15170 3% IGNORED : 237598 48% Histogram of PINGS ACKED: ICP_HIT : 862 0% ICP_MISS : 491363 100% cache without diskd (as seems from cache with diskd): Sibling : proxy-sibling1/3128/3130 Flags : proxy-only Address[0] : 195.168.1.102 Status : Up AVG RTT : 1 msec OPEN CONNS : 0 LAST QUERY : 0 seconds ago LAST REPLY : 0 seconds ago PINGS SENT : 491944 PINGS ACKED: 490930 100% FETCHES : 15739 3% IGNORED : 369896 75% Histogram of PINGS ACKED: ICP_HIT : 696 0% ICP_MISS : 490234 100% keep-alive ratio: 100% Note the average RTT increased... -- Matus UHLAR - fantomas, [EMAIL PROTECTED] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Linux IS user friendly, it's just selective who its friends are...
