high cpu usage after 916f9685fa42fc711f76a7f48d058e2656f7edf6 which changed Subscribe to nonblocking mode
Opened this issue · 1 comments
fortitudepub commented
in the following code snippets
for {
msgs, from, err := s.Receive()
if err != nil {
if err == syscall.EAGAIN {
continue
}
if cberr != nil {
cberr(fmt.Errorf("Receive failed: %v",
err))
if the socket baking s is changed to non blocking mode as the commit 916f968 did, when there is no event in the socket, kernel will always return EAGAIN which cause the goroutine to a busy loop.