cmd/mbf: optionally set SCHED_IDLE

None of the other supported policies are applicable here.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/mbf/main.go

@@ -55,6 +55,7 @@ func main() {
 		flagCures  int
 		flagBase   string
 		flagTShift int
+		flagIdle   bool
 	)
 	c := command.New(os.Stderr, log.Printf, "mbf", func([]string) (err error) {
 		msg.SwapVerbose(!flagQuiet)
@@ -79,6 +80,11 @@ func main() {
 				cache.SetThreshold(1 << flagTShift)
 			}
 		}
+
+		if flagIdle {
+			pkg.SchedPolicy = container.SCHED_IDLE
+		}
+
 		return
 	}).Flag(
 		&flagQuiet,
@@ -96,6 +102,10 @@ func main() {
 		&flagTShift,
 		"tshift", command.IntFlag(-1),
 		"Dependency graph size exponent, to the power of 2",
+	).Flag(
+		&flagIdle,
+		"sched-idle", command.BoolFlag(false),
+		"Set SCHED_IDLE scheduling policy",
 	)
 
 	{