I agree, though it would be nice if there were some *warning* in the CACHE.LOG about slow DNS transactions. ------------------------------ Message: 6 Date: Sat, 12 Dec 2015 17:03:25 +1300 From: Amos Jeffries <squid3@xxxxxxxxxxxxx> To: squid-users@xxxxxxxxxxxxxxxxxxxxx Subject: Re: Fw: Squid 32-bit (2.7.2) much faster than Message-ID: <566B9C8D.9000803@xxxxxxxxxxxxx> Content-Type: text/plain; charset=utf-8 On 12/12/2015 7:42 a.m., Patrick Flaherty wrote: > Hello, > > I added the following line to my squid.conf and now Squid 3.5.11 is as fast as 2.7.2 and feels like direct internet access. > > dns_v4_first on > That plus the huge difference in speed tells me that you have very broken IPv6 connectivity. Most likely ICMP is not working on your network, or one of your upstreams. ICMP is not an optional protocol. It is mandatory for efficient congestion control, even in IPv4 networks. Amos ***** _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users