英文:
Golang dispatch same data to go routins
问题
有一个Go协程生成数据。还有很多Go协程处理HTTP响应。我希望生成的数据能够传递给所有的HTTP处理程序。所有分发的数据都是相同的。
我考虑了两种解决方案。一种是使用通道管道进行扇出，另一种是使用互斥锁和条件变量。
我担心前一种方法是否需要在通道中进行内存分配。
我应该选择哪种方法？
英文:
There is one go routine generating data. Also are many go routines that handles http response. I want generated data to be passed to all http handler routines. All dispatched data are same.
I thought two solutions. Using channel pipeline to fan-out or using mutex and condition variable.
I concern if former way needs memory allocation to put data in channel.
What should I choose?
答案1
得分: 0
你的用例听起来可以从通道中受益。通常情况下，当需要在Go协程之间进行通信时，首选通道。听起来像是一个经典的工作池的例子。
互斥锁用于保护一块内存，以便只有一个goroutine可以同时访问/修改它。通常情况下，这与人们想要的相反，人们希望并行执行。
一个好的经验法则是，在实际成为问题之前，不要担心优化（内存分配与否）。过早优化是一种常见的反模式。
英文:
Your use case sounds like it benefits from channels. In general channels are preferred when communication between go routines is needed. Sounds like a classic example of a worker pool.
Mutexes are used to protect a piece of memory, so only 1 goroutine can access/modify it at a time. Often times this is the opposite of what people want, which is to parallelize execution.
A good rule of thumb is to not worry about optimization(memory allocation or not) until it actually becomes an issue. Premature optimization is a common anti-pattern.
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