Megatest

    ((10 11 12) 4)
    (else #f)))

;; given span of seconds tstart to tend
;; find start time to mark and mark delta
;;
(define (common:find-start-mark-and-mark-delta tstart tend)
  (let* ((deltat   (- tend tstart))
  (let* ((deltat   (- (max tend (+ tend 10)) tstart)) ;; can't handle runs of less than 4 seconds. Pad it to 10 seconds ...
	 (result   #f)
	 (min      60)
	 (hr       (* 60 60))
	 (day      (* 24 hr))
	 (yr       (* 365 day)) ;; year
	 (mo       (/ yr 12))
	 (wk       (* day 7)))

			       (tests-ht  (dboard:rundat-tests rundat))
			       (all-tids  (hash-table-keys   tests-ht)) ;; (apply append hierdat)) ;; was testsdat
			       (testsdat  (hash-table-values tests-ht))
			       (runcomp   (vg:comp-new));; new component for this run
			       (rows-used (make-hash-table)) ;; keep track of what parts of the rows are used here row1 = (obj1 obj2 ...)
			       ;; (row-height 4)
			       (run-start  (dboard:min-max < (map db:test-get-event_time testsdat)))
			       (run-end    (dboard:min-max > (map (lambda (t)(+ (db:test-get-event_time t)(db:test-get-run_duration t))) testsdat)))
			       (run-end    (let ((re (dboard:min-max > (map (lambda (t)(+ (db:test-get-event_time t)(db:test-get-run_duration t))) testsdat))))
					     (max re (+ 1 run-start)))) ;; use run-start+1 if run-start == run-end so delta is not zero
			       (timeoffset (- run-start)) ;; (+ fixed-originx canvas-margin) run-start))
			       (run-duration (- run-end run-start))
			       (timescale  (/ (- sizex (* 2 canvas-margin))
					      (if (> run-duration 0)
						  run-duration
						  (current-seconds)))) ;; a least lously guess
			       (maptime    (lambda (tsecs)(* timescale (+ tsecs timeoffset))))