On 29/06/2016 1:04 p.m., squid-cache wrote: > My squid server has 1Gbps connectivity to the internet and it > routinely gets 600 Mbps up/down to speedtest.net. > > When a client computer on the same network has a direct connection to > the internet it, too, gets 600 Mbps up/down. > > However, when that client computer connects through the squid server, > it can't seem to do any better than 120 Mbps down, 60 Mbps up. > > I've tried things like disabling disk cache, increasing > maximum_object_size*, etc. Nothing I change in the config seems to > increase or decrease my clients' bandwidth. > > Any tips for getting better bandwidth to clients in a proxy-only > setup? > Sadly, that is kind of expected at present for any single client connection. We have some evidence that Squid is artificially lowering packet sizes in a few annoying ways. Used to make sense on slower networks, but not nowdays. Nathan Hoad has been putting a lot of work into this recently to figure out what can be done and has a performance fix in Squid-4. That is not going to make it into 3.5 because it relies on some major restructuring done only in Squid-4 code. But, if you are okay with playing around in the code his initial patch submission shows the key value to change: <http://lists.squid-cache.org/pipermail/squid-dev/2016-March/005518.html> which should be the same in Squid-3. The 64KB bump in that patch leads to some pain so dont just apply that. In the end we went with 16KB to avoid huge per-connection memory requirements. It should really be tuned to about 1/2 or 1/4 the TCP buffer size on your system. After bumping up that read_ahead_gap directive also needs to be bumped up to a minimum of whatever value you choose there. HTH Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
