What you did is decouple production from consumption. You can speed up the
production go routine if the rate is irregular. But if, on average, consumption
is too slow, the list will grow until out of memory.
If you want to speed up consumption, you may group the strings in one big
string and print once. This will reduce the rate of system calls to print each
string individually.
Something like this (warning: raw untested code)
buf := make([]byte, 0, 1024)
ticker := time.NewTicker(1*time.Second)
for {
select {
case ticker.C:
if len(buf) > 0 {
fmt.Print(string(buf))
buf := buf[:0]
}
case m := <-buffChan:
buf = append(buf, m...)
buf = append(buf, '\n')
}
}
Adjust the ticker period time and initial buffer size to what matches your
need.
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