is there a supported command list and benchmark result?

[zz-jason]

It helps users know the Redis compatibility if there is a supported command list like the following:

Redis Command Groups	Redis Commands	Supported
Strings	APPEND	No
Strings	GET	Yes
...	...	...

And it would be even better if there can be a benchmark result, for example, you can post the result of memtier_benchmark and redis-benchmark.

[daimashusheng]

#4
I have added supported commands