Cherry-picked IMHO isn't necessarily the right label for that. They don't claim they made an universally 30% faster redis, they clearly say one of the things they did improved performance for a specific case.

If anything, the OP here is misleading by quoting it as a general improvement.

for them it is a real need.

(Talk with Daniel Zang CEO Alibaba Group) https://youtu.be/YhlvtcBwxPM?t=326

Oh...

It mentions "in short connection scenario".

I take that to mean repeated connect/set-get/disconnect. Like you might get from a client in a fastcgi scenario...php for example. Maybe add the -k 0 flag to the benchmark and a low-ish number of concurrent clients.