rrddim_add(st, "running", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(st, "blocked", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(st, "running", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rrddim_add(st, "blocked", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE);