基于 Go 语言的高性能大缓存库。在 Ubuntu 18.04 LTS，机器配置 i7-6700K CPU @ 4.00GHz with 32GB of RAM 上性能测试结果： ``` go version go version go1.13 linux/amd64 cd caches_bench; go test -bench=. -benchmem -benchtime=4s ./... -timeout 30m goos: linux goarch: amd64 pkg: github.com/allegro/bigcache/v2/caches_bench BenchmarkMapSet-8 12999889 376 ns/op 199 B/op 3 allocs/op BenchmarkConcurrentMapSet-8 4355726 1275 ns/op 337 B/op 8 allocs/op BenchmarkFreeCacheSet-8 11068976 703 ns/op 328 B/op 2 allocs/op BenchmarkBigCacheSet-8 10183717 478 ns/op 304 B/op 2 allocs/op BenchmarkMapGet-8 16536015 324 ns/op 23 B/op 1 allocs/op BenchmarkConcurrentMapGet-8 13165708 401 ns/op 24 B/op 2 allocs/op BenchmarkFreeCacheGet-8 10137682 690 ns/op 136 B/op 2 allocs/op BenchmarkBigCacheGet-8 11423854 450 ns/op 152 B/op 4 allocs/op BenchmarkBigCacheSetParallel-8 34233472 148 ns/op 317 B/op 3 allocs/op BenchmarkFreeCacheSetParallel-8 34222654 268 ns/op 350 B/op 3 allocs/op BenchmarkConcurrentMapSetParallel-8 19635688 240 ns/op 200 B/op 6 allocs/op BenchmarkBigCacheGetParallel-8 60547064 86.1 ns/op 152 B/op 4 allocs/op BenchmarkFreeCacheGetParallel-8 50701280 147 ns/op 136 B/op 3 allocs/op BenchmarkConcurrentMapGetParallel-8 27353288 175 ns/op 24 B/op 2 allocs/op PASS ok github.com/allegro/bigcache/v2/caches_bench 256.257s ```