Our Go Cache Library Choices
Compare golang bigcache, go-cache, groupcache, and golang-lru in all aspects
In Build a Go KV Cache from Scratch in 20 minutes, I walked you through what matters when writing a local cache, and eventually implemented one, whose performance was beaten badly by that of the popular go-cache on Github though. However, the bright side is that we can learn a lot from those excellent Github Go cache products, studying their features, applicable scenarios, and implementations, and extracting what we need.
In this article, I will mainly analyze and compare the four cache libraries of go-cache, bigcache, golang-lru, and groupcache, which are all very popular with thousands of users. And also I will list some features of go-generic-cache, which is the only one that supports generics of Go1.8.
Comparison and Assessment
High concurrency
Generally, the cache uses locking in concurrency control. Assuming that there are 100 elements and only one read-write lock, then you have to do it one by one when two elements are to be written at the same time. Low efficiency…
