GV$FILEMETRIC_HISTORY

SELECT
inst_id,                 -- INST_ID NUMBER
begtime,                 -- BEGIN_TIME DATE
endtime,                 -- END_TIME DATE
intsize_csec,            -- INTSIZE_CSEC NUMBER
fileid,                  -- FILE_ID NUMBER
creationtime,            -- CREATION_TIME NUMBER
avrdtime,                -- AVERAGE_READ_TIME NUMBER
avwrtime,                -- AVERAGE_WRITE_TIME NUMBER
phyread,                 -- PHYSICAL_READS NUMBER
phywrite,                -- PHYSICAL_WRITES NUMBER
phybkrd,                 -- PHYSICAL_BLOCK_READS NUMBER
phybkwr                  -- PHYSICAL_BLOCK_WRITES NUMBER
FROM
x$kewmflmv
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