When running the code below, the program starts at around 1.5M and then gradually grows until 6.4M. I'm wondering why. Removing time.sleep fixes the issue.
Is there a way to use the for-select pattern with a default and sleep some time in the default without any mem change?
Calling runtime.GC() after the sleep does fix the issue. Can we achieve the same thing without having to call the GC ?
package main
import (
"time"
)
func main() {
c := make(chan struct{})
for {
select {
case <-c:
//some work
default:
//some work
time.Sleep(time.Millisecond * 1)
}
}
}
Same with :
package main
import (
"time"
)
func main() {
c := make(chan struct{})
for {
select {
case <-c:
case <-time.After(time.Millisecond * 10):
}
}
}
After some time researching, I achieved it with the following code. Still wonder why time.sleep increases mem usage?
package main
import (
"time"
)
func main() {
c := make(chan bool)
timer := time.NewTimer(0)
for {
select {
case <-c:
default:
timer.Reset(time.Millisecond * 1)
<-timer.C
}
}
}