Go tutorial

A collection of Go tutorials for myself.

Result

• 2021-09-30: I used WSL2 to run.

  → go1.17.1 test -bench=.
  goos: linux
  goarch: amd64
  pkg: go-tutorial/cmd/cache
  cpu: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz
  BenchmarkWriteMemcache-4                      10         100472420 ns/op
  BenchmarkReadMemcache-4                       10         100689330 ns/op
  BenchmarkWriteMemcacheGoroutine-4         652153              4958 ns/op
  BenchmarkReadMemcacheGoroutine-4         1000000              3686 ns/op
  BenchmarkWriteRedis-4                       1652            683277 ns/op
  BenchmarkReadRedis-4                        1827            746675 ns/op
  BenchmarkWriteKeyDb-4                       1678            716956 ns/op
  BenchmarkReadKeyDb-4                        1707            702617 ns/op
  BenchmarkWriteGoCache-4                   548565              3070 ns/op
  BenchmarkReadGoCache-4                  15934350                71.62 ns/op
  BenchmarkWriteGoCacheGoroutine-4         1000000              4790 ns/op
  BenchmarkReadGoCacheGoRoutine-4          3935263               313.0 ns/op
  BenchmarkWriteRistretto-4                    732           1880123 ns/op
  BenchmarkReadRistretto-4                     100          18708744 ns/op
  BenchmarkWriteBigcache-4                       1        4617171600 ns/op
  BenchmarkReadBigcache-4                 11408173               104.6 ns/op
  PASS
  ok      go-tutorial/cmd/cache   50.058s

  goos: linux
  goarch: amd64
  pkg: go-tutorial/cmd/litedb
  cpu: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz
  BenchmarkWriteSQLite-4                               151           7949415 ns/op
  BenchmarkReadSQLite-4                               8212            137751 ns/op
  BenchmarkWriteShareMemSQLite-4                       135           7731625 ns/op
  BenchmarkReadShareMemSQLite-4                       8472            137281 ns/op
  BenchmarkWriteShareMemSQLiteGoroutine-4           133040              8507 ns/op
  BenchmarkReadShareMemSQLiteGoroutine-4           1000000              8075 ns/op
  BenchmarkWriteMemSQLite-4                         141237              8991 ns/op
  BenchmarkReadMemSQLite-4                            3776            593021 ns/op
  BenchmarkWriteRQLite-4                               151           6873940 ns/op
  BenchmarkReadRQLite-4                                193           6421101 ns/op
  BenchmarkWriteRQLiteGoroutine-4                   774082            131756 ns/op
  BenchmarkReadRQLiteGoroutine-4                    799147             58185 ns/op
  PASS
  ok      go-tutorial/cmd/litedb  17.752s

Known issues

1. Some cache tests cannot run with Goroutine:
   • Connection timeout:Redis, KeyDB
   • Run too long: Ristretto, Bigcache.