Cache Server like Redis Vs Static variable

Question

I wanna cache an array of object that is not more than 300 items, It's read only array. First I implemented it in Redis with StackExchange.Redis client, and then implement it by static variable. Static variable has e better performance and get less CPU usage instead of Redis, but I do not know that is it good way or not?

Accepted Answer

If the data is truly static, then while yes you could store the data in redis, you would not usually go to redis every time - so it would probably end up having a local cache anyway (with redis as a second level cache). `static` can work fine for things like a read-only array, and this will be unbeatable in terms of performance. However, if you start mutating the contents of a `static` member: expect pain.

Cache Server like Redis Vs Static variable

Solution

Problem