《Go 语言编程之旅：一起用 Go 做项目》 第五章：进程内缓存
Home Page: https://studygolang.com
License: MIT License
《Go 语言编程之旅：一起用 Go 做项目》 第五章进程内缓存相关实例代码。
本书涵盖 Go 语言的各大经典实战，不介绍 Go 语言的语法基础，内容面向项目实践，同时会针对核心细节进行分析。而在实际项目迭代中，常常会出现或多或少的事故，因此本书也针对 Go 语言的大杀器（分析工具）以及常见问题进行了全面讲解。
本书适合已经大致学习了 Go 语言的基础语法后，想要跨越到下一个阶段的开发人员，可以填补该阶段的空白和进一步拓展你的思维方向。
polarisxu 个人公众号
老师请问一下, 为什么我按照书里面的命令安装bigCache 一直404, 不加版本号的话一直下载的是 1.2.1 版本, 加了 -u 参数也是, 加版本号完全下载不了最新的, 2.2.0 也不行, 用的七牛云的国内代理, 难道一定要科学上网才行吗?
如題所述，fast/shard.go好像怪怪的，是不是要用Lock而不是RLock?還是我誤解了什麼?
WARNING: DATA RACE
Read at 0x00c00014ed88 by goroutine 112:
container/list.(*List).MoveToBack()
/usr/local/go/src/container/list/list.go:197 +0x4b8
test/fast.(*cacheShard).get()
/home/runner/test/fast/shard.go:63 +0x12b
test/fast.(*fastCache).Get()
/home/runner/test/fast/cache.go:32 +0xd8
test.BenchmarkT.func2()
/home/runner/test/main_test.go:17 +0x90
Previous write at 0x00c00014ed88 by goroutine 58:
container/list.(*List).move()
/usr/local/go/src/container/list/list.go:131 +0x3e6
container/list.(*List).MoveToBack()
/usr/local/go/src/container/list/list.go:201 +0x20d
test/fast.(*cacheShard).get()
/home/runner/test/fast/shard.go:63 +0x12b
test/fast.(*fastCache).Get()
/home/runner/test/fast/cache.go:32 +0xd8
test.BenchmarkT.func2()
/home/runner/test/main_test.go:17 +0x90
Goroutine 112 (running) created at:
test.BenchmarkT()
/home/runner/test/main_test.go:16 +0xc3
testing.(*B).runN()
/usr/local/go/src/testing/benchmark.go:191 +0x1b4
testing.(*B).launch()
/usr/local/go/src/testing/benchmark.go:321 +0x15c
Goroutine 58 (finished) created at:
test.BenchmarkT()
/home/runner/test/main_test.go:16 +0xc3
testing.(*B).runN()
/usr/local/go/src/testing/benchmark.go:191 +0x1b4
testing.(*B).launch()
/usr/local/go/src/testing/benchmark.go:321 +0x15c
==================
==================
WARNING: DATA RACE
Read at 0x00c000148248 by goroutine 67:
container/list.(*List).MoveToBack()
/usr/local/go/src/container/list/list.go:197 +0x4b8
test/fast.(*cacheShard).get()
/home/runner/test/fast/shard.go:63 +0x12b
test/fast.(*fastCache).Get()
/home/runner/test/fast/cache.go:32 +0xd8
test.BenchmarkT.func2()
/home/runner/test/main_test.go:17 +0x90
Previous write at 0x00c000148248 by goroutine 51:
[failed to restore the stack]
Goroutine 67 (running) created at:
test.BenchmarkT()
/home/runner/test/main_test.go:16 +0xc3
testing.(*B).runN()
/usr/local/go/src/testing/benchmark.go:191 +0x1b4
testing.(*B).launch()
/usr/local/go/src/testing/benchmark.go:321 +0x15c
Goroutine 51 (finished) created at:
test.BenchmarkT()
/home/runner/test/main_test.go:16 +0xc3
testing.(*B).runN()
/usr/local/go/src/testing/benchmark.go:191 +0x1b4
testing.(*B).launch()
/usr/local/go/src/testing/benchmark.go:321 +0x15c
........略
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