Replace Unbuffered channels with buffered channels.

[arijitAD]

Issue summary

• Use buffered channel by default.
• Buffered channel(size: 100) is 3x faster than the unbuffered channel because context switching between go routines takes time.

func BenchmarkUnbufferedChannelEmptyStruct(b *testing.B) {
	// BenchmarkUnbufferedChannelEmptyStruct-16    	 6310321	       181.6 ns/op
	ch := make(chan struct{})
	go func() {
		for {
			<-ch
		}
	}()
	for i := 0; i < b.N; i++ {
		ch <- struct{}{}
	}
}

func BenchmarkBufferedChannelEmptyStruct10(b *testing.B) {
	// BenchmarkBufferedChannelEmptyStruct1-16    	16444933	        69.14 ns/op
	ch := make(chan struct{}, 10)
	go func() {
		for {
			<-ch
		}
	}()
	for i := 0; i < b.N; i++ {
		ch <- struct{}{}
	}
}

func BenchmarkBufferedChannelEmptyStruct100(b *testing.B) {
	// BenchmarkBufferedChannelEmptyStruct10-16    	23277656	        45.66 ns/op
	ch := make(chan struct{}, 100)
	go func() {
		for {
			<-ch
		}
	}()
	for i := 0; i < b.N; i++ {
		ch <- struct{}{}
	}
}

Other information and links

[github-actions]

🎉 This issue has been resolved in version 0.6.0 🎉

The release is available on GitHub release

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