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codel + qfq can do even better.
The 5ms target of the overall codel algorithm is just that - a target.
Sometimes it's more, usually it's less, and with fair queuing (fq_codel) applied on top...
it can be MUCH less, especially where you need it. As in sub 1ms. Which should make a lot of gamers and voip/videoconferencing people very happy.
Also, for 10gigE installations people have been using 500us as the target,
which seems to work well. I wouldn't recommend changing the target delay for anything else at the present time.
Rather than theorize can I merely recommend people try this stuff out for themselves and ask questions on the codel at lists.bufferbloat.net.
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