Compared to just C-states disabled it improves:

ping56           ~76μs  ->   ~40μs
ping1472        ~150μs  ->  ~120μs

TCP1             ~90μs  ->   ~50μs
TCP1472         ~180μs  ->  ~145μs
TCP4096      ~220-230μs ->  ~175μs

ZEO:            ~660μs  ->  ~660μs
NEO/pylite:     ~630μs  ->  ~575μs    (Cpy)
NEO/pylite:     ~505μs  ->  ~460μs    (Cgo)
NEO/pysql:      ~930μs  ->  ~880μs    (Cpy)
NEO/pysql:      ~810μs  ->  ~750μs    (Cgo)
NEO/go:         ~430μs  ->  ~380μs    (Cpy)
NEO/go:         ~215μs  ->  ~170μs    (Cgo)
NEO/go-nosha1:  ~195μs  ->  ~150μs