ZS_PZ_PCT_CPU_CAP
uinta = zs_pset_zone_used_pct(zonea, ZS_PZ_PCT_CPU_CAP);
uintb = zs_pset_zone_used_pct(zoneb, ZS_PZ_PCT_CPU_CAP);
pct_cap = zs_pset_zone_used_pct(pz, ZS_PZ_PCT_CPU_CAP);
case ZS_PZ_PCT_CPU_CAP: