SELECT * FROM V$TEMPSTAT;

FILE#      PHYRDS     PHYWRTS    PHYBLKRD   PHYBLKWRT  READTIM    WRITETIM   AVGIOTIM   LSTIOTIM   MINIOTIM   MAXIORTM   MAXIOWTM  
---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
         1       3239       5444      15558      15599          3        115          0          1          0         77        811