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In developing Go applications that handle a large number of concurrent processes, it becomes crucial to implement global counters effectively. Here are the recommended approaches:
If the primary goal is to track a simple counter, the "sync" and "sync/atomic" packages provide efficient solutions without the overhead of channels:
import "sync/atomic" type count32 int32 func (c *count32) inc() int32 { return atomic.AddInt32((*int32)(c), 1) } func (c *count32) get() int32 { return atomic.LoadInt32((*int32)(c)) }
Channels become beneficial when coordinating workers and distributing tasks. However, for simple counter operations, they may introduce unnecessary overhead:
var work_chan chan int // make() called somewhere else (buffered) // started somewhere else func GoCounterRoutine() { for { select { case c := <-work_chan: work_counter += c break } } } func GoWorkerRoutine() { for { // do work work_chan <- 1 } }
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