redolog^redo^900^1800^
rollback^roll^99^99.50^
latch^w2w^99^99.50^
tablespace^tbsp^5^15^
slowsql^slow^200^300^
dc_hit_ratio^dchr^85^90^
lc_hit_ratio^lchr^98^99^
bc_hit_ratio^bchr^60^70^
memsorts^sort^90^95^
