cgroups notification API demo

Yiran at 
cgroups notification API demo12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758package mainimport ( "flag" "fmt" "io/ioutil" "os" "path/filepath" "golang.org/x/sys/unix")func main() { cgName := ……