NR_PSI_AGGREGATORS   77 include/linux/psi_types.h 	u32 times_prev[NR_PSI_AGGREGATORS][NR_PSI_STATES]
NR_PSI_AGGREGATORS  144 include/linux/psi_types.h 	u64 total[NR_PSI_AGGREGATORS][NR_PSI_STATES - 1];