File mode creation mask in UNIX.

In Go 1.11, a new tool has arrived. It’s called go mod.

UV Unique Visitor
PV Page View

Unique ID generation scheme in distributed systems.
Snowflake & Sonyflake

How Redis-Cluster works?

Shame

Unix下5种I/O模型。

From https://www.liaoxuefeng.com/

Parameterized Modules also called Abstract Modules or Tuple Modules.

原文： http://sqybi.com/blog/archives/322

缓存算法