// running threads with running Ps.
		ctx.IncThreadStateCount(ctx.elapsed(start), traceviewer.ThreadStateRunning, 1)
	}
	if from.Executing() {
		start := ev.Time()
		viewerEv.Name = "proc stop"
		viewerEv.Ts = ctx.elapsed(start)
		// TODO(mknyszek): We don't have a state machine for threads, so approximate
		// running threads with running Ps.
		ctx.IncThreadStateCount(ctx.elapsed(start), traceviewer.ThreadStateRunning, -1)
	}

		viewerEv.Arg = format.ThreadIDArg{ThreadID: uint64(ev.Thread())}
		viewerEv.Ts = ctx.elapsed(start)
		ctx.IncThreadStateCount(ctx.elapsed(start), traceviewer.ThreadStateRunning, 1)
	}
	if from.Executing() {
		start := ev.Time()
		viewerEv.Name = "proc stop"
		viewerEv.Ts = ctx.elapsed(start)
		ctx.IncThreadStateCount(ctx.elapsed(start), traceviewer.ThreadStateRunning, -1)

		// Check if this proc was in a syscall before it stopped.

				Runnable:  uint64(e.gstates[GRunnable]),
				GCWaiting: uint64(e.gstates[GWaitingGC]),
			},
		})
	}
	e.prevGstates = e.gstates
}

func (e *Emitter) IncThreadStateCount(ts time.Duration, state ThreadState, delta int64) {
	e.threadStats[state] += delta
	if e.prevThreadStats == e.threadStats {
		return
	}
	if e.tsWithinRange(ts) {
		e.OptionalEvent(&format.Event{