This version of NV does much better than previous versions when things are very congested and also adds a couple of experimental features.
Tested in a rack using between 1 and 380 active TCP-NV flows. Consists of the following patches: [PATCH net-next 1/2] tcp: add in_flight to tcp_skb_cb [PATCH net-next 2/2] tcp: add NV congestion control Signed-off-by: Lawrence Brakmo <bra...@fb.com> include/net/tcp.h | 2 + net/ipv4/Kconfig | 16 ++ net/ipv4/Makefile | 1 + net/ipv4/tcp_input.c | 5 +- net/ipv4/tcp_nv.c | 597 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ net/ipv4/tcp_output.c | 4 +- 6 files changed, 623 insertions(+), 2 deletions(-)