[Bloat] fixing bufferbloat in 2017

Stephen Hemminger stephen at networkplumber.org
Wed Nov 23 14:29:19 EST 2016

> BQL for vmxnet3 (if possible). Virtual router are becoming common.

BQL could be implemented in vmxnet3, but probably not in virtio.
virtio defers freeing packets to try and have better cache behavior

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