[issue 18] share a Netease go experience

• Self introduction.
• The main direction of the future
• Introduce the optimization points used in previous projects 、 difficulty
• Why not use a lot of goroutine
• gpm Model
• go Inside goroutine Is there a limit on the number of creation ？
• What's the difference between threads and coroutines
• golang What concurrency mechanisms are supported
• go utilize channel Mode of communication
• Buffered and unbuffered channel The difference between
• channel Realization principle
• By close Of channel What's the problem
• What do distributed locks know ？ use channel How to achieve ？
• For cluster channel How to implement distributed locks
• parallel goroutine How to achieve
• go How to ensure the safety of concurrency by sharing memory ？
• go Is your lock reentrant ？
• Will you wait until you get the lock ？
• How to achieve a timeout Lock of ？
• go How slicing is implemented
• It mainly uses redis What functions are implemented
• How to solve cache penetration
• Common current limiting algorithms
• What is the difference between a token bucket and a leaky bucket
• How do different services communicate
• once rpc What process to go through
• rpc How the framework does performance tuning
• Which have been used? rpc frame
• Talk about fusing 、 Current limiting 、 Downgrade 、 An avalanche
• Do you know which open source frameworks ？
• docker What's the difference between virtual machine and virtual machine
• serviceMash To solve any problem ？
• devops What are the related technologies