succd: run at 100Hz, monitor load and jitter

succbone/succd/process_controller.go

@@ -7,6 +7,7 @@ import "k8s.io/klog"
 //
 // This is a subset of daemon functions limited to a safe, explicit subset.
 type daemonController interface {
+	loopLoad() int64
 	// snapshot returns an internally consistent copy of the daemon state.
 	snapshot() *daemonState
 	// rpSet enables/disables the roughing pump.
@@ -19,6 +20,10 @@ type daemonController interface {
 	ventPress()
 }
 
+func (d *daemon) loopLoad() int64 {
+	return d.load.Load()
+}
+
 func (d *daemon) snapshot() *daemonState {
 	d.mu.RLock()
 	ds := d.daemonState