pghw_util
uint64_t old_utilization = hw_util->pghw_util;
hw_util->pghw_util = 0;
hw_util->pghw_util += stats->cs_value_total;
if (hw_util->pghw_util > old_utilization)
utilization_delta = hw_util->pghw_util - old_utilization;
hw_util->pghw_util = 0;
pgsp->pg_hw_util.value.ui64 = hw_util->pghw_util;
uint64_t pghw_util; /* sum(utilization) */