rrd.live_head->last_up %
(rrd.rra_def[rraindex].pdp_cnt * rrd.stat_head->pdp_step)) +
(timer * rrd.rra_def[rraindex].pdp_cnt * rrd.stat_head->pdp_step);
rrd.live_head->last_up %
(rrd.rra_def[rraindex].pdp_cnt * rrd.stat_head->pdp_step)) +
(timer * rrd.rra_def[rraindex].pdp_cnt * rrd.stat_head->pdp_step);